I live in Lakewood (West Denver Area), but I am not a builder of "modded" work saws. I mostly build stuff back to stock or do some muffler mods and base gasket delete, a little machining on the cylinders, etc. I do lots of repairs on junked out saws and sell them after I fix them and play with them some.
The few people I have met in the Denver area that think they are real "Pro saw porters" are hacks in my opinion.
Shipping is an expensive thing for saws coming to and from Denver, no matter where they go. Mastermind has always shown me kindness on this forum, and his saws never seem to disappoint their owners.
Another is Zoo City Saws.
Good Luck!