Some one needs to start making the Long John Axle tool again, I have one for KtM's, is a long wrench that the handle can be used to push the axle through the swing arm and it will hold the wheel in place, pull the wrench out and the wheel drops
To install the wheel, you push the handle just into the first side of the swing arm, lift the wheel into place and keep pushing the wrench in, it acts like clutch alignment tool and aids in lining the wheel, spacers and swing arm up, once you have the handle all the way through, you use your axle to push the wrench back through and you are done, thread the axle nut on and torque it.
07 KTM 950 SE
79 Yamaha RD400
76 BMW R76/6
06 Vespa Granturismo 200L