RE: Slop in aileron!
If you have the room (and the money) I'd put an adjustable clevis on the bellcrank end of the pushrod and a solder clevis on the aileron end. A new bellcrank may also be needed.
If you replace one bellcrank it must match the other side
Tower numbers: LXD938, LXDMK4, LXK109 For some reason no dimensions are given.
You'll have to make the decision.