Thank you for your help.  I do have one last question.  I want to transfer the bitcoin cash to my trezor as well.  I will just use the original keys.  Do I need to have the bitcoin cash wallet on a different computer or can I have electrum and electron cash on the same computer without there being and issue?

Here is the transaction ID   bbbbb348b66ac2c53abc8d4342e28f156598f04d8a1551eeb381fe82d246b0ec
I tried to accelerate it but it said Submissions are beyond limit. Please try later.

What should I do if it is above 35k, just wait?  It is at 95k unconfirmed right now.

Thank you.  I am not in a huge hurry to have the BTC transfer.  So sweeping may have a large fee to do it quickly and there seems to be no way to control the fee with a sweep.  Also I will have to pay another fee to send to trezor.  I will import the keys to electrum which does not have a fee.  I should be able to control the fee size with an import and just send to the trezor this evening or tomorrow and post the transaction and try to get it accelerated.

I just want to make sure that importing the keys to electrum will have no effect on claiming the bitcoin cash.  I would still be able to use the original keys to do that, right?

https://bitcoinfees.21.co/ seems to be a good place to get an idea of fees and is currently recommending 510 sat/B, I was also looking at tradeblock.com's graph on fee/size and in the last week it looks like the average has not gone above 150 sat/B.  What do you guys do to estimate a low fee that does not have to get through quickly, but will still get through even if it takes a day or 2?

thanks again for all your help.

here is what I see   It always says fee unknown with a 12.7kb transaction.  With this large of a transaction I am trying to keep costs down, I know it is going to be a large fee to move.  I would like to know the fee and will try to send it at off peak times.  I would prefer it not to put me under 1 BTC.

I want to send everything to a new wallet in my trezor.  I just do not think trying to send it with multibit classic is a good idea and think importing or sweeping into a compatible wallet like electrum is the safest way to go to send my BTC to my trezor.

Swagtoshi. I have the lastest version of electrum 2.9.3. However, I do not see a way to adjust the fees with a sweep. When I do sweep it always says fee unknown. Under the send tab and preferences are the only places I see to adjust fees. Are you asking for the transaction of the sweep?  I have swept, but not broadcasted it.

Abdussamad. I get the window after sweeping, but few is always unknown. From further reseach importing might be better with more contiol of fees. Then just consolidate all the transactions into one by moving the BTC into a new trezor wallet after importing.

If I import my keys to electrum would that effect me claiming my bitcoin cash.  From reading boards it best to move you BTC to a different wallet, than use the keys in a bitcoin cash wallet. Is there any risk with importing into electrum or can i still use my original keys to claim the bitcoin cash.

I have some BTC that I mined back in 2014 on a Multibit Classic wallet.  I am trying to transfer everything to a Trezor and trying to figure out the safest and most cost effective way to do that.  I tired sweeping keys from Mulitbit into electrum.  I tried doing that yesterday and I swept 5 address with 86 transactions for a total of just over 12,700 bytes.  It said the fee was unknown. 

It does not say what the fee would be for sweeping into electrum.  The current version of multibit classic wallet I have I can set the highest transaction fee for .0005 BTC/kb or 50 satoshis/ byte.  If I set it to the highest fee, would the transaction go through or would it get stuck?   

Would I be screwed if it did not go through since Multibit classic is not supported?

I have some BTC that I got from mining back in 2014 on a Multibit Classic wallet.  I am trying to transfer everything to a Trezor and trying to figure out the safest and most cost effective way to do that.  I read that you can sweep your keys from Mulitbit into electrum.  I tried doing that yesterday and I swept 5 address with 86 transactions for a total of just over 12,700 bytes.  It said the fee was unknown. 

1)Is there a set fee for sweeping or is there a way to find out how much the fee would be to sweep?  I know you can adjust the transaction fees, but that did not seem to do anything for sweeping.

2)12.7kb is large, looking up average current fee is 450 satoshis/byte using that it would be about .057BTC ~ $240 fee to sweep in a little over 1BTC.  Is there a better route to get the coins out of multibit and into the trezor?

3)My balance on my Multibit classic is just over 1.04BTC when sweeping the keys it says amount received is 999.9 mBTC.  Is that how much would show up in electrum after the fees or do I need to check for unconfirmed transfers? which the last transfer was in 2014.

Thank you for your help.