Another option would be to strip the covering off those suckers and steam the wood. It could be less work than cutting the present hinges to install mfg supplied replacement ailerons. They'd need new slots cut and those slots would be into a wing with a TE stiffened by the CA hinges you just cut.

BTW, the amount of warp shown in your pictues is enough to have an effect on the low speed stability of that airplane. If the warp is: tip down/root up, the plane will have a stronger tendency to tip stall on landing. Not good.


I just noticed the wrinkles in the covering in your pictures. The covering on the ailerons is loose enough (when wrinkles like that show) the covering really hasn't influenced the aileron wood to warp at all. It's worth seeing if tight covering can hold the aileron wood straight. If the wood is somewhat flexible, the covering should not only hold it straight, but stiffen it as well. It's worth the effort.