You might talk w/ canvas shops right arounfd the dead of winter. Or would auto upholstry shops be good to look into? I'll bet you will get prices all over the board.
Where did you come across that boat? Was a freind of mine's that was repo'd about 5 years ago. I know all the history of that boat if you want to contact me.
If you are still interested in interior work let me know. We are in Grand Rapids MI so not too far from you. We do custom boat interiors, everything from basic to wild.
If you are interested check out our site www.appearanceproductsinc.com