i'm going to replace the bbl. on a swedish CG-63 (a target rifle based on a m-96 action) bought a lothar walther bbl. that is contoured, threaded and "deep chambered". i have a bbl. vise; but, no wrench. any suggestions how i might make something up? i really don't want to buy something. this will most likely the last bbl. work that i will ever do.