I have been trying to find a solution to the fact that evo lipos are very hard to find, I think i have found a solution.....
Micro T or Micro Rally/Sct Lipos. They are 2s and they are a little bit smaller than a xmod lipo, I think that you can pull the plastic coating off the lipo. Separating the 2 cells. You could mount them the same way as xmod lipos.
link:
http://www.ebay.com/itm/micro-losi-l...item3cd264ba8f
http://www.ebay.com/itm/Losi-LOSB982...item5d3c43f7f4
These batterys have close specs to xmod lipos? if anyone know let me know.