You might want to review your parts request Avin - you have some No4 parts (woodwork, foresight protector etc.) but the barrelled action is not of a No4 but of a No5 'Jungle Carbine.' If you want to complete the No5 you will need a flash eliminator, a rear sight, & a full set of woodwork & associated furniture. It is possible to modify a No4 fore end to fit & function on a No5, (& I am still happy to supply you with one), but you'll now have a number of other problems to overcome. It's all do-able - it's a case of finding the parts.......