Step 1:
"Guy" should let LBS know that he will give them "X" amount of time to produce a finished bike otherwise "Guy" will be forced to spend his $$ elsewhere.

Step 2:
"Guy" should consider the reaction he would get from LBS if he kept them waiting for their $$ for this long.

Unfortunately most LBS's don't "excel" in customer service. The downfall of the LBS is that they are "usually" run by a guy who likes biking but has no business sense. They ***** and moan that the "big box" stores steal their business, but do nothing to change their service practices to retain that business.

What other industry would you put up with stringing you along like this. If this was the company that delivered your Oil or Gas would you just accept this behavior?

Step 3:
"Guy" should try building up his own bike. It's shockingly easy and a whole lot more satisfying than waiting for other to do it. A Lot less aggravating as well.

I can get any part I want for my bike in under a week and at 10-50% less than I would pay at the LBS, yet I still have a good relationship with the guys who run the shop. I give them the business that makes sense for me to and get the rest for myself.