The framing should have waited until you selected the unit.

I would think twice about putting a TV above the fireplace because that is not the ideal position for comfortable viewing; you have to look up at it. The screen should ideally be at eye level. But if that's your preference and you're confident it works well for you, go for it. We just had a direct vent insert installed in our prefab fireplace, and our price is similar to yours. I cannot comment on your estimate for the mantle because we didn't replace ours. I think they come in every style and price, and your estimate of $1000 seems certainly a generous allowance. One word of caution: the clearance of the mantle should conform to the insert's specifications, or else it will get too hot, which is a hazard. Check the insert's installation manual. A really good LCD TV (say, the top-of-the-line Sharp or Sony) might cost more than $2000, depending on screen size. We bought ours at Crutchfield.com. Their prices are not the cheapest, but competitive, and their customer service is first class. Happy snuggling near the fire with a good tv show.

sarahbr2, forgot one other thing dealer mentioned. my room where the fireplace will go is in a new addition off my kitchen/dining room. original exterior wall will be removed to make open concept. his thoughts were an open concept space will allow heat to move to adjoining rooms. could be more problematic if your space is more confined. this dealer is well respected and gets most business in my area so i value their opinion. once you choose the fviews, it may be hard to find an option you would be happy with. that full view, that river rock and driftwood.....like a night on the beach, only in iowa!

Are you able to use Google? If yes, I may be able to help you.