So I think I want to hook up the three post 1980 accessory gauges in my 1980 non turbo 245 (the set of 3 52mm gauges in the upper dash). I think they consist of the turbo gauge, an oil pressure gauge, and a volt meter. My question isn't so much how to mount them, I'll worry about that later. What I want to know is whether or not I can successfully connect these gauges to my car. Here's what I'm thinking.

I know the turbo gauge works off the vacuum system, but will I get a reading at all on my non turbo B21F? Where should I splice the gauge into my vacuum system?

How do I hook up the oil pressure sender in my car? Can I unscrew a sender from a later model turbo and use it in the place my mine to get the gauge functionality? Will it fit and work properly?

I assume the volt gauge isn't a huge deal. Am I right? Where would I hook that into my system for a voltage reading, directly to the battery?

Thanks for any help you all can provide!

Jason