Wheels for older Contractors Wardrobe

I would like to locate a couple of wheels for the mirrored closet doors made by Contractors Wardrobe. The ones (wheel housings) I have seen so far on Swisco do not seem to be exactly the right size. The bolt holes all seem to be a different spread than what I have. I would of course desire only the inserts for these housings if we could find some this size ( see 1st photo, 1" 5/8 X 2" 13/16), however if buying the housing is the only way to get them then alas I will succumb if you can find a bolt pattern that matches photos 2,3,and 4. I am in hopes you can locate a couple of the inserts in the back corner of Contractors Wardrobe warehouse underneath a pallet. Byron