I have recently bought a 7'X16' enclosed trailer and have a hydrotek sc unit in it. The pump is fluctuating pressure so instead of fixing it i am going to replace it. the reason i want to replace it is because it has an upgraded engine. it used to be a 16 hp vanguard and now it has a 24 hp honda. i think i want to ability to run 2 guns so i want something between 7 and 8 gpm and something around 3500psi. does that sound ok? if so what pump would recommend and how do i know what type of uploader i have to get to support it? i appreciate all advice you can offer. thanks