You can probaby find some parts at TowerHobbies. If they dont have the parts youre looking for, then they dont exist anymore

There are many great nitro beginner cars out there. HPI makes the popular monster truck Savage 25 and the smaller stadium truck Nitro MT 2. Traxxas also has some good choices, for exaple the T-MAXX, Nitro Stampede and the Nitro Rustler. If youre more into the buggies, OFNA makes a great low budget car; the Ultra MBX Pro RTR. I personally dont like the budget cars from Kyosho, but I guess the Inferno TR-15 and the different TR-15 stadium trucks they have are ok. I also heard good things about Team Associated and Team Losi. Use TowerHobbies or your local hobby shop for price comparision.

Good luck choosing