Hi Nick,
Good to see your project is coming along. Am I missing something here, is there something wrong with the UPC kits? I too will be converting my brakes and stud pattern soon going to HQ pattern as I want weld draglites for my car.. I think they really suit unflared Torana's. I am interested to know how I can go about changing my 9inch axles to HQ pattern also?
Save yourself the major heartache and hidden costs of f/u's by using brake companies like Hoopers that sell kits that fit, offer customer service and stand behind what they sell, make etc. Tony from UPC (Mr Spares) is like having tits on a bull.