I Need some advice on value of a YAM 2011 SHO 250 20” lower unit with possible broken drive shaft. This LU failed after I encountered some pretty rough water out in the sound. I finally got into a sheltered river and opened it up to about 5500 RPM and heard load pop and lost propulsion but motor continued to run. Could shift forward and reverse with no effect. Prop did not hit anything. This was attached to new power head of my 2011 Z521 Ranger. LU Case has absolutely no damage, prop shaft spins freely with no wobble. Drive shaft spins freely and feels disconnected from pinion. I think the drive shaft could be removed from the top if bearing is pulled. Oil drained with no metal and a little fuzz on mag. plug. I have debated whether to repair myself but just don’t have the time or facilities. I am about to put it on the “for sale board”. What is it worth?