Redrill wheel mounting surfaces?

unless you have acces to do it I think spacer/adapters would be a lot cheaper in the long run seeing as how you would eventualy have to re-drill another set of rotors from time to time when those go.
That and spare rear axles, and maybe a spare front hub or 2.

I bought and used a set of Tera-flex wheel spacers. They were 1 1/4 wide and had three bolt patterns on them. first pattern is the origonal 5 on 5 so you can mount them to your hubs. They also had 5 on 5.5 and 5 on 4.5. They come with studs and nuts. I had to trim the factory rear wheel studs to install the spacers and not have the origonal studs touch the new rims. The fronts needed no mods.