[mreid]

Welcome! As you probably know, that is a very wide engine. Most replicas will require the foot boxes at a minimum to be clearanced and custom headers to be fabricated. Your best bet is to call around and talk to various manufacturers. I know that FFR recently introduced their Mk 4 which has modified footboxes, but you will have to do much of the additional required modifications yourself. Backdraft, has an excellent team in the US that will do it for you prior to delivering your car, but there will be a cost. I guess it boils down to how much you can do yourself or how much you want to spend!