I'm not sure whether he has a website but his name and email is Floyd S. Werner, Jr. fwernerjr@comcast.net He will answer you pretty fast and tell you what he charges for the canopies and shipping. I saw his canopies on another website that just gave his email address. I found him great and had no issues at all with him.
Thanks for the other advise. When I get around to building mine I will remember what you said. BTW he also makes an upgrade kit for the OH-58D which I ordered at the same time. Now I just need to order the model.
Charlie