problem with dealer noit getting work done--byers remorse

Unless you have something in the contract that says they have to deliver by a certain date, there's probably not much you can do. If it takes another week, at least you're 2/3 of the way there. As far as worrying if you paid too much, once I make a purchase, I never look around for a better price. Seems you'll always find a better deal AFTER you buy. It'll drive you nuts.