Quote
I researched how easy it is to convert the stock A/C comp to OBA, I had thought before this was only possible with special (York style) compressors. I can get a JY comp for $40 so I'm going to go that route.

Sounds like the path of least resistance to get an idler... and OBA may be do-able. Take a peek at the inlet/outlet of whatever pump you get, though there are many custom fittings available to adapt hose fittings to stock compressors, you may be able to use the existing hoses cut down, or even just use a pipe tap to thread the inside walls of the fittings (many are aluminum)>

Randii