Find a cheap 5K, lock the diff. then take it somewhere far away from civilians and get some practice of how to control it.
Down the track, look at upgrading your springs and shockers. Possibly look at coilovers and bigger brakes.
Then start looking for more power, you can try forced induction K engines, The 4AGE family, SR20s, CA18s, 3SGE etc. Anything that isnt going to bolt straight in (All in the list except the K engines) is going to cost money and lots of it, if you can't do ALOT of it yourself.