My rmk has about 4000 miles on it and was rebuilt at 2000 miles and had the wide crank bearing installed. The bearings on the mag side recently went so I sent it to a shop to be rebuilt and their doing all the upgrades to it like a stronger pto end and align honing the case if needed. I also am installing an engine base plate a torque stop and a torque link from slp. My question is how much longer should these upgrades make it last or is 2000 miles all I can expect to get?