When I wanted to replace the clevis, I just bought the whole rod and ends at the same time, I don't mind building the rods, piece of cake, and you know the clevis will fit. I always save the old stuff, you will always find a use for it later, sometimes not even RC related.. I had 2 of the Alpha's, I have trained a number of people on them, they hold up well, and when things get really rough, I have still managed to put them back together again with a minimum of new wood. I have gone through more covering. I did switch out the evolution engine for a Magnum 52 four stroke, which seems to give a really great pull from low speed, and with the low pitch prop on it, it slows down well for landing. I will admit the Evolution engine did last for years, after moving to the 4 stroke engine, I don't miss the slime, and as a trainer, I didn't need the speed, the Evolution could scoot right along when it was tuned well.