Had to stop last night.... ugh, did a water test on the bulkheads and 1 was leaking, tightened it up but after trying to plumb the sump I loosened the other 3 and they all started to leak.
Back at it today, lifted the tank off of the stand, going to cut larger holes for easier under cabinet maintenance and retighten everything.
Also since i'm going through a wall, i'm just going to use braided vinyl since it has a TON more forgiveness than hard PVC. Stick and move, stick and move, adjust and conquer!