Small block supercharger setups

So like this?

View attachment 1715348503

This is a small block 6-71 roots style supercharger.
Yes exactly like that, what brand is that? And thanks for the measurements, as for price of the project it's a moot point as I want what I want and I will work my *** into the dirt till I get it lol I would rather have a original Mopar tranny but if I can't find one I can get them from classic industries