I think I can make my own crankshaft installer...basically the same design as the Tusk unit, but made with items I already have in the garage.
I'll be using the steel crush tube from the center of an ATV axle carrier, an 3/16" thick washer of unknown origin, short piece of metric all-thread, metric threaded coupler, and a nut to fit the all-thread.
Should be able to thread the coupler onto the KX60 crank, install the all-thread into the coupler, place the crush tube over the all-thread and against the case, install the uber-thick washer over all-thread and against the crush tube, and install the nut onto the all-thread and against the washer. Will have to grind a couple of wrench flats into the top of the all-thread to keep the whole assembly from turning, but otherwise should pull the crankshaft into the cases just fine.