You will only need the front Lightened universals, shock standoffs, and green front and rear springs. Build with the stock pistons they come with and try your old oil combination.
Car is better IMO with the new shocks. Feels alot more stable in the choppy stuff and lands big jumps better..
As far as shops that have them. I would go with A - Main Hobbies or
www.carolinasrc.com
Its well worth the upgrade...