Sounds like someone is trying to make a quick buck. $100 for an initial consultation? Didn't really go into details of what type or sizes of turbos, what type of material of manifolds, size of injectors, etc...He sounds more like a used cars saleman trying to selling a kit with different options. Most likely the turbos, wastegates, BOVs are chinese made from Ebay.
I can see he is trying to make a quick put together kits from the video. I know I wouldn't use a 90 degree silicon elbow to the throttle body. He could have gotten an aluminum elbow and use a straight connector to minimize flexing or boost leak.
If you don't know how to turbo, its best to get a shop to do it and you can learn from it.
Just a quick search, I found a kit that looks like his.
http://www.ebay.com/itm/CHEVY-SBC-28...30e6b7&vxp=mtr