You got it right. You have the framework setup the same as on my 1900 SR2. The only thing I see missing are the adjustable straps (One per side) that have a loop that slides up the back tubular frame and goes just above the plastic mounting piece for the front tubular frame. The other end of the strap clips to the eyelet on the hull at the inside, back end of the side window frame. These keep the canvas tied down when you're running with just the front section installed. If you can't find them you should be able to fabricate something that will work. Hope this makes sense. I'll try to post a photo of my setup later.
Seapuppy, wishing you calm seas and fair winds on your journey.