sounds like you are missing the expensive bits, dont know what the ecu costs, but the stat is around £40 and pump around £70.
have a look on ebay you get a cd with all the info on , fuel pipe bore and length is critical as is the air inlet and exhaust pipes,they have to balance in length , there is also min and max lengths.
beware parts are different between the L and LC models too. LC models require computers/ dealers to reset some stuff. also beware of buying 24v bits which are much more common