As far as brand of gauges? Anything will do really.
A lot of parts stores carry Autometer gauges, which are the brand I use, and they work well enough. It's kind of like buying band-aids. There may be different brands but they all do the same thing just as well as the next.
The one thing you way want to decide on is the type of oil pressure gauge. I really like mechanical oil gauges because they respond in real time exactly how the engine is. It feels more accurate. Electrical gauges refresh certain times per second, so they don't always have the exact data at the exact second.
However, mechanical gauges require running HIGH PRESSURE OIL INTO THE CABIN!!!! This is the *only* reason I gave up my mechanical gauge for an electrical one.
Nylon tubing and brass ferrels don't exactly do the job with 60+ psi of oil pressure and if you tightened something wrong, you could have a slow leak, or be shooting 60 psi worth of oil into the ground, or worse, your face/cabin.
For a boost gauge, just go mechanical. I'm not even sure they make electrical boost gauges. Make sure it's a vacuum/boost gauge so you can read it both ways. Also make sure it's hooked up to the right spot...
And then just the aeroforce interceptor gauge.