boostedb18kid

i have a '94 ls. so i have an obd1 and want to control my boost the best way without spending $1k on aem. if i were to buy a gm 3-bar map sensor, what all do i need for my car being that i want to boost over 10.65 psi....or whatever the max is for honda 2 bar. i kind of understand it all and kind of dont. if i were to get an s200, what additional parts would i need to tune at a dyno.

basically, if you were a 21 year old working 7 days a week grinding for each paycheck, and needed to control the fuel on a b18b-t, what would you do in my situation...i want to do it the right way...but trying to limit the cost as well.