suggestions on lift up Tacoma prerunner 4x2
 

Hey buddies
I want to lift my truck up about 3" higher, any suggestions on that? I have OEM rim 16x7 n 265/75/16 new tires already, I don't want to invest too much $$ for the tires and rim. So should I buying a real 3" suspension lift up kit, adding coil over (what is that), add four spacers, changing to adjustable shocks like bilstein 5100 series or adding spacers plus add a leaf to the back end.
I'm new in this lift up section. I need you guys input before I do the investment on it.
What about "doing the job" who will be the one doing this for me.... a dealership, auto body shop (regular), pepboys, sears or a real 4x4 offroad truck store.