lst2 does not require rpm arms. There is plenty of camber in the stock ones and I have never seen one broken yet.

rpm arms are useless without lunsford ti turnbuckles.

lst2 is pretty much bullet proof. Very few hop ups needed to make it a top racer. (sway bars/tires/engine brace/foward only conversion), great radio gear out of the box. Best stock big block engine in MT's.
Only fully enclosed drivetrain/spurs/clutchbell
Well worth the price.

Alot of good deals on lst2 racers on ebay and lstforums