I have decided to change my brakes from a vacuum booster to a hydro boost system. So today my local Pick-a-Part had a half off sale on everything so I found a pretty clean 1995 Astro Van and removed the hydro boost unit. For $23 plus a $5 core charge I walked away with a pretty decent hydro boost unit that will just need a little bit of cleaning.

I will still need to figure out mounting, rod length, different master cylinder, hoses, and possilbly a proportioning valve for my rear discs.