I know this feeling. I was going to do this but no fucking faggot would sell me crypto more than $100 at a time. So I wound up just scanning my DL and using an ATM until I realized I could pay literally less than 1/10th in fees by getting on coinbase pro, which is where I've been since.
Honestly if anyone's worried, coinbase is extremely easy to use for this kind of transaction. They'll charge your card for the bitcoin, it'll be in your wallet instantly, and then you can send it to 4chan straight from the coinbase website.