If you figure out whose kit it is, please let me know. Looking at many of the kits they run somewhere around $450+ depending on what you get. The HB units themselves are not all that expensive; a Ram 3500 version is like $176 on Rockauto and the Astro Van version is $122 and I am capable of making any mounting plate I might need so I really don't think I need to spend ~$500+ on one.
I really like the concept and especially the packaging. On my 70 RR I would have to use a HB system or go manual because it has a tilt front end and there is no room for a vacuum booster. This is why I am looking for data at this point.
