Pretty easy, you need a set of mag nuts, you have to bore out the centres a bit, I decided to bore them out to the sze of beer/coke cans so I could use them as centre caps, + 5mm spacers at the rear.
Got some plans for the old girl, involves a Subaru engine, some welding, mint Flipper blue paint job, distressed leather, Red 9 wishbones + rack, discs at the back Rader wheels O0