If I were you Vinny I'd run a B4 for a while, 4wd's are 5x more work to get going well and keep going well and also a lot more expensive in general than a 2wd. You've also got a lot less to think about on the setup, especially if you are running a B4 as the setup is pretty similar on most tracks.
Also how ever much motor you think you need get something a bit slower! When I first started racing many moons ago and my Dad was working on my car he wouldn't give me anything faster than a 27t. Driving with less power than I could handle taught me then how to get round corners properly and how important it was not to crash. I went on like that for at least my first 3 years and even then when I got a new motor it was an 18 double or something
When you can get round without making mistakes it's time to start spending big money on gear
Don't let anyone stop you buying what you like, but everyone is trying to help
