Is there a reason why you didn’t go with a inline pump?I bought my pump from a company called "Tanks". It also stuck up too high to fit under my stock passenger seat so I cut my tank and tig welded in an insert that I also bought at tanks. But it needs to be carefully laid out to avoid the baffles and the gas level gauge in the tank. The pump also sits in a little tray in the tank. I needed to cut the tray down as well to avoid the baffles.