wasnt going to waste any more of my time. a certain workshop that i do alot of stuff for, had the similar problem as me with this said person, and when this shop sent their engine and sump down for the person to fix, this person managed to drop the sump and crack it (sump being a custom one costing ~2k)
also this person said he'd refund me part of my money, and im yet to see any funds in my account (he said he'd refund me over 2 months ago)
said person also said he was going to stop making them, so who know's what's going on there
basically i've made my own design from scratch, which fits 100% and is cheaper than other's