I have the opportunity to get a 1917 that was sporterized to 458 win for 250 that is currently in a synthetic stock. I would want to at minimum restock it but was wondering if the conversion to Lott is as simple as reaming or if it would require mag work and whatnot? It seems to be fairly well done but I only see one screw hole on the rear of the reciver so I am not sure if there is an existing base for that or if it is missing something it once had.