I had an idea for a cap swap and followed @Sleeper80 fantastic tutorial. I substituted a cordless drill as a vise and used the original metal axles. It’s a little time consuming and requires some patience but not too difficult otherwise. Everything fit back together nicely and they both play great!
Sleeper80’s Butterfied Butterfly Mods, and more
Sparkledelic MelonFly and Arctic Spruce 
