Slot Aluminum Mag Wheel Help

[cericd]

I've been looking around the forum and I'm really digging the look of the old Indy style slotted mags on these trucks but I'm trying to find out if they will work with my application. I've got a 70 swb fleetside with factory 6-lug drums but I'm planning to do a disc/drum setup. I've seen that these wheels came in 4,5,6, & 8 lug patterns but what I can't find out is if they will clear disc brakes. I'd really like to get a set but before I scour the entire web looking for some I need to know if I will be able to upgrade to discs with them. Also, if some will and some won't work, how do I identify the right wheels? I'm also planning a 4/6 drop so I'd like something that wouldn't rub. Maybe 15x7 and 15x8 or 8.5. Anyone have a set on a disc/drum truck so I can bypass the backspacing guessing game?

Thanks