Thank you. Iīm glad you like them.
There is a cradle for the 501X on itīs way too. Will post pictures of it in the next couple of days.
The main difference it that it only has 2 holes. You attach it with the battery posts. Very simple.
The diff cover for the 501X is also available.
http://www.oople.com/forums/showthread.php?t=26926
Will update that thread tomorrow with fresh pics of the final cover and price. Will cost approx $45. Not the cheapest, but it will save you a lot of maintenance and belts/pulleys.
Tomorrow I will hopefully have a price on the lipo cradles as well. Should be approx $20-$25. Thatīs a more "normal" price.