I would contact Anthony Storey or Roy Kasten both a little less money and easier to deal with. They will have no problem talking with you about what your trying to accomplish. Neil Clauge usually charges more and states he prefers dealing by email. Google all three and decide.
You cant go wrong with Roy Kasten(rapidroy2002@yahoo.com). He made me a great LDC for my Career Ultra. Took him only a week and a half to get it into my hands.
I'm partial to Neil Clague because he makes LDCs that slip over the shroud with a chamber in that section, that way I can get for example a 6+3" instead than a 8" ldc keeping the gun a bit shorter.