Ok, I had missed the OBD1 part on Hondata's site for the ECU, but here's what I've seen. You won't be able to run bigger injectors on the stock ECU, so you will need something like an A'PEXi S-AFC to adjust the fuel trim for bigger injectors. Also, do NOT buy an ebay knockoff turbo. From everything I've ever read for them, they are cheap chinese replicas of real turbos, that are NOT balanced. That means when you spin it to 60,000+RPM of shaft speed, things come apart real easy and destroy your engine. Spend the money on a name brand turbo (IHI, Garrett, Mitusbishi) and know that it won't self-destruct on you the first time you spool. I would also go with a 255lph fuel pump and a boost-referenced fuel pressure regulator, the 255 is only like $15-25 more than the 190, so it's worth it for extra insurance. I haven't heard anything, good or bad, about OBX, but if you're using an FMU, just go with the boost referenced pressure regulator, because a good one is adjustable so you can tune the pressure rise rate right at the regulator, or get a Vortech FMU off ebay. A 10:1 FMU will not do you any good, as at 1psi boost, it would provide 10psi fuel, 2psi-20, 3-30 and 4-40. Your stock fuel system runs on 43-45psi stock, so the FMU would literally do nothing at just 4psi of boost, so you would be wasting your money at that point. Above that, 6-7-8psi, it would work well, but combined with bigger injectors it would probably flood your engine without proper tuning.
I would do:
ebay intercooler kit
Garrett T28/T3 or another internally wastegated turbocharger
JGS Tools manifold
Get an exhaust shop to make a downpipe for you
Walbro 255lph pump
good fuel pressure regulator with a boost referencing port
Apexi S-AFC Neo
DIY oil and other lines needed for the turbo
With all that you might be able to get it to run somewhat acceptable, but unfortunately with only 4psi, you won't see much for a power increase.