I just installed VA in my 68 Chevelle.
I routed the suction hose, big hose, behind the engine and brought it up to the compressor on the drivers side. Other AC hose runs on top of the inner fender behind the battery to the hard piping. Then on the drivers side there is a short hose, high pressure, that runs from the compressor to the hard piping into the condenser.
Install was pretty straight forward if you just follow the instructions.
One thing I changed, was the fitting on both ends of the suction hose to more directly aim it at the fittings where it connected. It would have worked OK with the fittings they supplied, but I liked it better my way and they were easier to connect.
One thing I didn't care for is the heater hose connections are under the dash, inside the car. I suppose it's not a big deal, but if you ever had a leak it would be a mess. Just use the best heater hose you can buy.
If you want some pictures, let me know of what.