I don't have any of that, but I'll happily purchase all of them. I understand how to use the noid light, but I've never had to use timing light or a fuel pressure gauge, so I don't really know how to use these.
The timing light's sole purpose is to verify spark . The fuel pressure gauge ( when plumbed correctly ) will indicate proper fuel pressure . The noid light will indicate injector pulse . Are all the grounds properly connected ? If you do not test for these , I can only wish you luck .