Would allowing auto's and motecs and billet blocks help keep the cost down, IMO not at all so if that stuff is allowed your back to a huge dollar bike to race again and I thought that was the exact opposite of what they are trying to put together. Hell say stock wheels and help keep the cost down even more. otherwise it will turn out like real street where there's very few bikes and 2 or 3 that out class the rest.
So then the choice is either we allow expensive parts to obtain the bigger displacement, or we reduce the engine size to where no one needs to buy the expensive parts. Sounds like to me the engine sizes need to be made smaller.if a big guy cant use a billet block it will be hard for him to get enough cc's. ex 660lb combo would be 1729 cc's