The right-hand one's a mechanical oil pressure gauge. I was getting random, low readings from the dash gauge before the sender packed up completely. Rather than rely on electrickery (and the quality/accuracy of aftermarket senders), for peace of mind a mechanical gauge is pretty foolproof.
The left-hand ones a vacuum gauge. Not only does it help in driving economy, it can tell you a lot about the state of your engine.
i must say the car looks grate makes mine look like it shuld be on a scrap heeeeepppp lol what wheel nuts did you use or how did you get them to fit as i have the same wheels to put mine when i finish polishing them lol thanks and yes the picy of her creeping round tree grate