Sorry to be slow with my reply. I have attached some pictures. Unfortunately, I do NOT have a lot of positive things to say about canvas people. I used Mark Minor who owns Ontario Canvas. Mark is a good guy and I like him, but I had problems. First of all, you need to get all the specs nailed down IN WRITING. Once Mark and I agreed on what I wanted, he wrote down a number (somewhere around $4200) on his business card. Then, he proceeded to do very nice work and a very good design. He has over three decades of experience and it shows. The work was NOT flawless, and I do not believe I got the heavy duty frame I asked for, but the big problem cam in when he said he was done with the "full canvas" and the cockpit had a cover but no sides. It was open all the way around. He said that's what we negotiated. From my viewpoint it was NOT and the price negotiated was what I was told to expect for "full canvas." He said it would be another $1,200 to enclose the cockpit. I agreed. Then when he was done he said it was $2,200 (or there-abouts - can't recall exactly but I have records of payments someplace). So, I ended up spending $6,400. After that, things fell apart further as I asked for window covers and pointed out an example on my dock (I have dated pics) and he built me something completely different. At that point I asked him to remove the window covers and refused to pay. He did so, but I still have a bunch of snaps screwed into my boat that I have to deal with. I'm confident there is no warranty and I'm on my own, which is frustrating.
I am generally pretty happy with Mark's work and I still like the guy, but I'm not sure I could recommend him. "Burien Upholstery" was recommended to me, but every time I tried calling them they were totally rude - I mean ridiculously rude - on the phone. They can't even say "hello" politely, so I couldn't go there. I called King canvas and they were responsive, but they sent out a young guy who could not verbalize what he would do for me and I couldn't get him to understand what I wanted; and that made me look elsewhere. I think I will try King again. They are a sponsor for the Tollycraft Club, and that carries some weight with me.
Last comment: I discussed my canvas work with a local boat & trailer retailer who had been in the business for 43 years at that time (in 2016) and after I told him of my experience, he said, "In 43 years, that's the kind of stuff we have seen EVERY time with canvas guys. We have never seen a canvas guy who did a good job, and was fair and honest." That was a shocking statement to me.