I hope you find a good answer. I have a Coinbase account but I have never withdrew anything from Hive with it. I only really have experience moving BCH with it which I think has a lower transaction fees than BTC but don't quote me on that. Even with that it's been quite some time since I have completed any tasks. Sorry I have no solutions for you. I know you said you reached out in Dischord, maybe asking in Team USA there if you haven't already yet. I could ask there for you as well :-) I look to do and figure out doing the opposite of what your trying to do, haha.
Best wishes on your new place and look forward to seeing more of you again.