It's not really $8. That was just an example. How about doing it on Electrum?
If you are not in a hurry, it is better for you to wait until the transaction is confirmed. The problem is that to calculate the transaction fees, the term wallet is useless. You need to specify the number of inputs, outputs and type of addresses. If you tell us the number of Inputs and outputs (how many address in both sides) and type of addresses, we will recommend the best fee for you in exchange for a reasonable waiting time ( Several hours) but the bump fee option will still mean that you will pay more
So going by mempool[dot]space not so accurate?
Also i was thinking of just sending the funds in lightning if the cost for the transaction from start to finish wont be more than a couple of dollars. It looks like it's at least $13 for btc atm. I realize ill be double sending - with the one that's pending eventually going through.