For fun...

GJ Rules of Cost
1. All tradesmen are $100+/hr and dont know what theyre doing, so buy the most expensive tools and screw it up yourself.
2. All tradesmen pay full box-store retail for everything and cannot possibly do a job cheaper than you.
3. All contractors working out of a truck/van by themself or with a helper are evil and going to screw you. The only safe bet is to pay the most expensive company with the fanciest stores and newest/biggest trucks.
4. Cost is area dependent and tradesmen wont travel more than 2 miles, so there is no need to get more than 2-3 quotes, leave your subdivision, or spend more than 5 minutes researching cost outside your immediate area.
5. All garages cost $100+/ft2 for the bare framing alone. Concrete, siding, roofing, etc are all extra. If your 2-car garage didnt cost $100k+ it likely wasnt built correctly.
6. If you pay a tradesman you own them for life. They are responsible for every minor repair in the middle of the night, on Sunday, for free, even when you specified something cheap/wrong and/or they have no experience building that particular item. Treating them like ****, interrupting their work, getting in the way with your camera, not allowing them use of the *******, withholding and/or being slow with payment, and expecting them to work through inclement weather will neither affect the quality nor price of the work nor future work. Net 30 is the same as net 90.
7. No matter what anybody else nearby says they paid they are wrong, YOU are in the most expensive part of the country.