Cost and/or advise for screen enclosure in central FL wanted

I put in a pool last year without a screen . Now it looks like a screen will be necessary to get full enjoyment/use out of the pool.

Can anyone tell me how much I should expect to pay for a screen enclosure?
My pool is free form (18 x 39) with raised spa and located about 20 ft from the house with a paver deck. This means I'll need around a 50 x 50 foot screen with foundation.

Also any advise (materials, do's/dont's, etc.) or names of good screen companies in the Orlando, Oviedo area would be appreciated.

Thanks,
Mike

We're in Deltona. Our screen was included in our contract with the PB, but basically it's 30' x 34' with two (2) doors; domed roof and 8' sidewalls; cost $6,500. Our screen is still being permitted, but the screen company is Coastal Craftsmen in Orlando. Their telephone number is (407) 298-0096 and the fellow I talked to was Russ Hodges. He's very nice to talk to and very helpful, but I understand he's a little tough to reach by phone sometimes. I can't vouch for their work yet, but our PB has been very conscientious, so I'm hoping his screen company is too.

I got my first quote - it's $31,000 plus an addtional estimated $2000 for footer. I guess there is a huge cost increase once the span goes over 35 feet.
Thanks for sharing your costs.
Mike