I've built this with an iGX800 and a Predator 670 so far. Note if you order the pump it come in a 1" gearbox shaft which is suitable for Predator 670's but iGX800's and GX690's are 1 1/8" shafts and you must specify in the notes of the order. I would always recommend an iGX800 over a Predator or even a 690 but they're harder to come by these days than usual. I've included several engine options on this build.
10GPM Build