Factory disc brake rotor question

Steve do NOT worry about swedging those. As long as the hub and the rotor present a flat surface--and you can remove any burrs with file, etc, just stick the studs in and stack them together. If possible I would TURN THEM ON THE HUB. If they are not tight (swedged) I would assemble them, use washers / whatever and snug them down to the hub with upside-down lug nuts.

I have a rotor/ drum lathe. Too damn bad you ain't close. By the way you can safely turn those
(big fat double thick rotors) a LONG ways past the toss dimension if you can get someone to do so.

I can not answer, though on the mismatched hubs/ rotors working.