Best Sprags For CS2 Lenco???

Wanted some advice about building a CS2 Lenco...
What is the Best Sprags to buy for it?
HD Lenco ones have been quoted to me at 550.00
Anybody know if these are Helicopter ones?
Who makes Helicopter Sprags and Where can i purchase them?(web Sites?)
Last question....
Do Cs1 and Cs2 use same Sprags? or are they different for all 3 lencos?

 

Bump...
Anybody know about what Sprags for CS2??

 

Same sprag as cs1, no need for form sprag unless you want to spend the money, use strips and clips cheaper and the lenco drive isn't real hard on the sprags.