Okay so I'm repairing my run flats since its my only car and daily driver. Professional shop is doing it as I type and it will be properly done, they've done it before. I think what I'll do is, keep these as long as safely possible, then before winter put snow tires on them and then buy a whole new set of rims and summer tires to be safe. Don't want to wreck my new(to me) car. Thanks guys!
08 e93 335i MT