Not trying to be a rah rah for GS or nothing here, but I felt like it needed to be said.
I owned and operated my own boat shop in the early-mid 90's.
Not a huge budget, best in the land shop, but it was mine and I did my best to supply the best service for the consumers dollar.
All that BS out of the way, the mom and pop shops need your business in the worst possible way. I totally understand where you are coming from and in my opinion you have every justification to be upset.
These shops don't have twenty people walking around picking their butt just looking to make sure you are happy and get what you need at the snap of a finger. They are in the middle of the busiest season trying to make their year... Once October comes around, they will be picking up the phone receiver to see if it even works (I've done it). That being said, it sucks what happened to you and I am sure Greg would want to make it right with you. Send him an email, take pictures of your wants, explain what your thinking. He may not get back to you tomorrow, but he will get back to you. The job you want done is a winter job, not a summer job. The price will be lower in December, it is likely the turn around time will be shorter too.
I just needed to get that off my chest because I have been on the other side of it and know full well what was going on.
GT