If anyone cares .... the new engine is in the Wheel Horse.
Starts and runs fine, pulleys line up, all 3 forward gears and reverse work ----
It will need a seat and the left steering arm needs to be welded to the axle shaft.
The drive belt seems OK, but probably should be replaced.
All 4 tires are up and stay up right now, but severe dry rot is evident -- probably just the tubes keeping them up.
If anyone would have a need for the OEM engine Briggs 190434-0638-01 and you would like to have it ??? it is 8 Hp . The starter and alternator are not present.