Swapping Front Disc Hub from small bolt to large bolt pattern

Will not work, because you would have to drill the rotor which has very little meat to begin with I have read over the last few years. Also I do not think there are large bolt hubs from mopars anyway because the 72 and up rotors used one piece rotor/hubs. Maybe from a 65+ mustang with discs.
You should read the other post above yours about mustang rotors/hubs. This method will give you the more desired bolt pattern.