Looking for professional engine builder/machinist

Looking for machinist/engine builder interested in making changes to an R3 416. Currently 4.040 W2 engine wanting to build a 4.250 W9 engine. Any suggestions? Previously built by IMM engines.
Randy Beyer racing in Gretna Nebaska. Races a small block Mopar in NHRA comp eliminator. No BS and a very nice guy.