track day maybe?
my advice (like most peoples) gut the car and leave it, collect more cash and buy a turbo kit, or piece one together yourself (i have a manifold and BOV i'm selling). then after you have the kit, chip the ecu, then save and upgrade internals.
i know you said you wanted to keep your D, but you would be money ahead to pick up a cheap B swap and do that. more power, more torque, and more potential. D's can be built up really well but do you wanna spend that much money on a sohc? same amount of money would make the B just as fast or faster i'd think. just my two cents