Hey Roe Hwy friend ^_^
The Bosch ones are cheaper, and you need to modify the cradle(bracket that holds the pump) to fit them in.. and stuff around even more if you want the little pick-up sock fitted to it(no idea how to do that).
I've got a Tomei one. Was $340 a while back, but it comes with a new cradle, new o-ring, new clamps, new regulator thing.
Just unplug the old one, slide it out, slide this one in, plug it back up. So much easier if you're going to do it yourself (I'll even do it for you)