i am doing the same thing to my 98 ranger with the 2.5 engine.if you got therangerstation.com they have all the infor to do the job ..
ssautochrome.com has the turbo ,manifold , blow off valve, hardware for 600.00. not inturnal engine mods needed for 15-20 psi of boost.the intercooler and piping you can get on ebay for under 200.00 universal.jet chip have an custom programing avalible . 320.00 you can also email .i will be glade to help[..the 2.3 and 2.5 are very much the same engine ..the only differance betweeen the 2.3 turbo block and the 2.5 is an bossing on the pass. side of the block.