HAH!
Yeah definitely bugger off the drums. One important thing about the disc brakes. There are different sizes (the size is the size diameter of the brake disc. The brakes are completely different though). and you have to have 7.5' diameter disc brakes with corresponding set up to allow the 10 inch wheels to fit. In other words, if you want this mini to look right, you need these! Hopefully you got them!
Yeah no seatbelts needed. Even now your car doesn't have to have them.. Even for the MOT! I'd definitely fit some! You will have to weld in some mounts but this is no big job..
Are drums that bad? I'll have no seatbelts and drums :S