Well, the best budget setup I can think of is this:
JGS log manifoldT3/T04E 50 trim, ebay it should be 4-600OR T3 from a Z31 300zx in a junkyard check for shaftplay etc.Oil line kit from JGS as wellmuffler shop special intercooler piping to an ebay sourced or starion, supra, eclipse intercooler.Walbro 255lph fuel pump you can ebay it as well370cc injectors from a person with an SR or 96-98 300zx who are upgradingS-AFC for some simple tuning and to adjust for the injectorsMaybe a Z32 MAF if you have some extra cash after all that.
This setup should run you a little bit more than 1500 bucks, get you about 210-230hp at 7-8psi and be reliable. Now there are cheaper ways to do it out there but this one is pretty proven and pretty reliable, it will also allow for some growth down the road, especially if you go with the t3/t04e. If you have any more questions feel free to ask

Dont forget to try the search function either, things like "budget turbo kit" or "cheap turbo setup" should get you some good results as well
