Whether people now use a more moderm manifold or not these things are still worth a small fortune in good nick , if you bust one you'll have problems buying the individual components ! Most of the new batches are sold out as far as im aware so its purely dependant on the used market . Budget a grand as a minimum !! Bear in mind the price of injectors and add that , then proper fuel regs , cable brackets , fuel rails and it soon mounts up .
Hope this helps