Part of owning a fleet of canoes is knowing how to repair them.
You can use nice wood seats
https://www.oakorchardcanoe.com/canoeseats.phphttps://www.youtube.com/watch?v=8YlPk7PHn44
https://www.youtube.com/watch?v=SgzXvgbPHsQ
https://www.youtube.com/watch?v=wxeNnCXwk18
https://www.youtube.com/watch?v=6gAFsDDNm2o
https://www.youtube.com/watch?v=rGKUKCcRZy0
5mm Polyester Accessory Cord for Lacing
Space lacing 10mm apart
Cut tubing 12mm with diagonal cuts (centered at 12mm marks)
get 20' of 1/4" IN 3/8"OD clear tubing
8-10mm polyester climbing rope for end loops
6-8 cm back from the bow and
6cm down from the top of the deck plate
https://www.youtube.com/watch?v=3TolRv3hPUg
https://www.axevalecc.co.uk/Information/Canoeing/OpenCanoeOutfitting.pdf
https://www.youtube.com/watch?v=6TVA9RPU3MI
Royalex and T-Formax
https://www.youtube.com/watch?v=P9IAQ-Ca9eQ