First off there is nothing wrong with drag manifolds, I've used two of them with no problems.
hondata + tuning will run you about $700 if you go with s100, have you looked into uberdata?
I run hondata and love it, not only am I making more power with it but the sense of security is well worth the money. I sold my old stuff (sfc,injectors and fmu) for about $400 the extra $300 was worth it 110%.
cheapturbo.com is great for turbo's I'm using one and love it.
i'm also using the following
streetimports fmic (21x9x3") big improvement over my old greddy intercooler)
megan racing bov $139 cant beat that and it's awesome. I'm all about performance and saving money, I have had no problems what so ever. 9it's good up to 24psi)
custom piping mandrel bends welded...easy enough
756cc injectors delphi...$180 cant beat that.
many other little parts (resister pack, 3 bar map etc)
Its well worth the effort to build your own kit if you like to save money. I have about $3,500 into my set-up. It's a tad more then a kit, but I also got hondata, a quality intank fuel pump and injectors that I'll soon grow into ...not to mention reliabilty and power.i'm putting down about 320hp, cant do that with your average revhard kit.
I'm all about custom set-ups, if you wouldlike more info let me know, i've built several and enjoy doing it. I'm willing to help you out.