84 Hydra Sport restoration help

Just got a new used boat last Saturday, and it needs some work. I've never had a boat, nor do I have more than a couple friends with a bass boat. But none of them have done what I need to do with this boat. Basically I have no clue what to do, or where to start.

Stuff on my boat that needs redone, or fixed.

1. Whole boat inside and out needs a thorough cleaning. What products would be safe to use?

2. Carpet needs replaced. Where can you get decent carpet for someone on a budget?

3. Seats need reupholstered. I just so happen to do reupholstery, so the seats and carpet will be easy.

4. 2 soft spots in floor. One major, and one minor. I was thinking of just covering them over with a piece of carpeted plywood or board, but if fixing it wouldn't be too hard I'd rather fix it than just cover it. How do you fix soft spots in the floor?
Please help! Thanks in advance

http://www.bassboatcarpets.com/

or BPS or Cabelas. All sell carpet. Do NOT buy the stuff sold at Home Depot or Lowes. It make terrible marine carpet and it doesn't last.

See your soft spot thread.