Flooring, insulation, windows...Looking for guidance on prices

Hi all... We're trying to get a sense of costs for a home reno project in Toronto. Hoping people here can offer some guidance. We realize costs will be specific to the project, but some general info on standard costs would be helpful. Thanks in advance

1. How much should be expect to be charge to remove an old tongue and groove floor, polish up the pine sub-floor and apply a protective finish? The area involved is 242 sq ft. on the second floor of the house.

2. How much should we expect to pay for for 130 sq ft of R30 spray foam insulation for a ceiling and a further 398 sq ft of R14 spray foam for wall insualtion? What the costs for open cell vs. closed cell?

3. What does cost to install pink insulation into a 120 sq. ft. ceiling with intake rafter vent channel, and vapor barrier?

4. What should we expect to pay for the installation of two windows measuring 4 ft x 5ft.? One install is brick-to-brick, the other is into an existing out-jutting siding framework.

Thanks again for any advice/guidance you can offer on any or all of these jobs!