I had the opposite problem with my wheels, one came with sprung bearing seals and a shorter crush tube and distance between bearing seats, the other came with sealed bearings and the bearing seats, crush tubes further apart/longer.
I made spacers to fit inside the bearing seats of the one with the separate oil seals and replaced all bearings with sealed ones. This gave the distance apart the bearings are the same dimension. Also it should be the stronger of the two options. I have the longer stub axles on mine, mount the brake mounts innermost, had to do a spot of grinding for fit to the stub carrier and the stubs are spacer free and about 8mm into the outer 10mm bearing.