I have read of builders' experiences with bending axles on some of their 'firmer' landings and this is something I want to avoid as much as possible so have chosen to go with 5/8" x .120" tubes. With no access to a lathe I used the flap disk on the angle grinder and rolled the axle by hand on the workbench, moving the flap disk up and down the length. The gear leg had to be heated with the torch and the axle 'coaxed' into position a few times between grindings. They had to be turned down the same way to slide the wheel bearings on as well. They have been drilled for a 3/16" clevis pins and will be cut to the final lengths when the crush plates and disk brakes have been fitted.
