Okay I was misinterpreted. I guess a "decent" set-up is too general of a category. Out there is right. If you just want a turbo set-up, providing that your leak down and compression test is excellent, you can do this:
-Internally gated T28, T3 super 60, TD05 (junkyard)= $100-200
-custom turbo manifold= $300-500
-custom piping= $150
-custom intercooler= $250
-Eclipse blow off valve (BOV)= $50-100 (used)
-Fuel management (APEXi SAFC)= $200 (used)
-DSM 450cc injectors/resistor box= $75 (used)
-Oil lines, tubing, fittings, clamps,= $100-150
-Autometer boost gauge= $60
-Autometer A/F ratio gauge= $60 (acurate only at WOT) or EGT gauge= $120-200
-Timer= $75-100
-255LPH intank fuel pump= $100
-NGK 7 series spark plugs= $15-25
With the list on top, the average will be $1500-1700. The SAFC, DSM 450cc/resistor box is only required on an AFC hack set-up. If the hack is not incorporated, a boost dependent FMU can be used.
With $3K, you may even be able to get some internals upgraded. What's gonna kill you on this project is the labor. If you do not do most of these yourself. You'll end paying close to $3000 still but without internal build.
www.homemadeturbo.com/forum has so much info and different routes to take. If you are serious about this mod, I'll email my turbo accord F22 buddy and have him give you pointers......
Note: All prices is in U.S. dollar currency