Just had a boat owner with a 420 Sundance order replacement canvas from one of these folks. After trying to get the I’ll fitted canvas to work he had to spend $500 to have a local shop fix the mess. Some may be cheaper but check out why before the shell out $$. What type of thread do they use? If it’s cotton or a blend it will only last for 3 years max. Do they use double lined Sunbrella? Maybe this doesn’t matte to some but there is a reason Sea Ray contracts with specific canvas makers. My original canvas from GIOIA SAILS lasted 9 years.