I'm in the process of acquiring pressure and vacuum testing tools. The tests I want to be able to cover are:
- fuel pressure test
- cooling system pressure test
- oil pressure test
- compression test

I'm hoping that I can perform all needed tests with:
- a limited set of gauges
- a single hand pump
- a comprehensive set of adapters

Right now, I have:
- an engine compression gauge
- a cheap pressure/vacuum gauge with a barbed fitting. It's range on vacuum is fine: 30" Hg, but for pressure, it's only 10 psi
- a Mityvac hand vacuum pump, with a gauge on the vacuum side, but only a port on the pressure side

I believe that the only additional things I need to address all the above tests is:
1) a reasonaby priced pressure gauge that would handle to 100 psi
2) a variety of fittings, hoses, etc. to adapt the test equipment to the various systems on the car, specifically for:
a) fuel pressure test (one test kit mfr. says the rail fitting is M12x1.5)
b) oil pressure test
c) cooling system pressure test


Can anyone make specific suggestions - ie. manufacturers, part numbers, sources - for where to purchase the items in 1) and 2), or in the case of standard fittings: thread sizes, etc.?