Brakes are from a C6 Vette. Engine and trans are in every LS based vehicle made by GM (Which is a lot). Any Holden specific parts are stored in a GM warehouse in Warren, MI. Parts availability in 30 days max. And if that doesn't work, Cleveland Pick-a-Part has enough parts to build multiple GTOs. Don't discount the car just because Pontiac isn't around. Likwid, driving mine wouldn't be a fair comparison with the extra power and upgraded clutch, but if you find one for sale around Columbus I highly suggest giving them a try. You might be surprised. If you have any questions, just PM me, I'm very familiar with these cars and most GM sports cars.