And electricians out there

Honestly though, you have no reason to trust my advice. I'm just internet guy 100222020. Get a second opinion if you can.

You should bury the line in some 1" schedule 80 PVC conduit, at least 18" to the top of the PVC. Pull 3 lines (Hot, Neutral and Ground) of #10 THHN stranded and call it a day.