I'm pretty sure the only way to get that done would be to go to a local canvas shop, take them the boat and have them measure up and fabricate it for you.....never priced it out but pretty sure it wont be cheap. Pretty sure no one sells an off the shelf cover like that for a V-20. I thought someone on the board semi recently had one made...should they pipe up and tell you who made it for them they may be able to reproduce without having to measure it all over again but that could be a gamble too because I'm sure Wellcraft did not install snaps EXACTLY in the same spot from boat to boat. I know this to be true because I bought an enclosure off of another 1986 V-20 and it fit like a glove but I had to move some snaps around on the hull to get them all snapped up.