There is a complete price list on
www.hydroholics.net You can add up the parts you want or don't want by that list. The kits are sold with or without accums. Do the bag thing if you want, but keep in mind you will want to fill them with nitrogen and make sure they never ever leak, or you will be constantly fooling around with the bags. If you get accums you will never have to touch them. We use a triple seal with polypack in our cylinders... standard! You can go over 2 years on a daily driven vehicle without changing them.If you go with that $899 or whatever it is from prohopper you will be shorting yourself on a lot of stuff that the Hydroholics kits come with standard. We don't even carry the "cheap" stuff. Prohopper packs thier kits with the minimums. Will it work, sure, but you will find yourself replacing stuff sooner than you think. Thier kit will come with basic cylinders (no polypack and only 2 seals), check valves that are no more than a 3/8" staright fitting with a ball and spring in side it, slow downs that will start to leak in about a month, nevermind the cheapo fittings that bottom out when they are supposed to taper tight, non bearing end caps on the motor, ect ect ect. I have nothing against Prohopper, in fact, that is all I use to install before Hydroholics. They sell great stuff, but it doesn't come with thier kits. Like Derek already said if you want to have a reliable setup you need to get the "must" items. By the time you do that with prohopper products you will be spending more than if you would have gone with Hydroholics.