My original MP3 500 (2008) gave me a few years of good service after a top end rebuild but I think the increased pressures in the case from the piston failure caused issues that in order to fix would require the case to be split and I don't have the heart for it.
Moving ahead in time. Jess offered his 500 (2009) so I had it shipped from CA to IN with the intention of swapping engines. Both bikes spent time outside. His in the Bay area and mine in Florida and his seems to be in better overall shape so instead of an engine swap I am rehabbing it with new and parts from mine. One from two.
I will be replacing both throttle cables, rear shocks and any parts that haven't aged well plus all of the service stuff.