1. I do have surplus btc in the wallet, is it an easy process to do CPFP? Is my blockchain Web wallet capable / can you recommend a rookie guide perhaps? I wouldn't mind getting it confirmed prior to your estimation if it's fairly easy and risk free Grin
If you send to one address with what I see from your txid, then the other address is just a change address, which means you can do CPFP. But if you send to two addresses in that transaction above, then you can not do it. You will need your wallet to have an UTXO of the last transaction which will be the remaining bitcoin sent back to your wallet another address. If you send to only one address, then you can do it. All you need to do is to make bitcoin transaction to another address (it can also be your another bitcoin address on the same wallet) using high fee. The transaction will be confirmed if high fee is used for the second transaction (child transaction) while the first (parent) transaction will be confirmed at the same time because the miner that will but the child transaction into block will not have choice and will include the parent transaction along.
2. You say chances are it'll confirm on Sunday, almost a week from sending point. I'll assume it's your familiarity with current traffic, but what makes you know this?
Yes, it may confirm on Sunday because mempool are more less congested on Sunday and weekend generally but more on Sunday, but there are times the mempool will not be less congested in a way to make miner get your transaction confirmed. It is just an assumption that do work but may not work at times.
Side note I'll be checking out the electrum wallet after this pain transaction is sorted.
This will be good. On electrum wallet, you can also use RBF to pump or cancel the transaction, the fee that will be demanded for this is not high compared to CPFP because in CPFP, you will need to pay for the two transaction (child and parent transaction), while for RBF, you will need to just need to increase fee for one transaction, although the transaction will be replaced entirely with new txid generated.