Bummer on your hinges being delayed. However we both have enough work to skip around to when delayed in another spot. It all needs doing. Perseverance seems to be key to get one of these campers completed.
I now have all the outer frame work for the hatch cut and fit. The new upper oak hatch edge is glued and screwed to the hatch ribs. Both inner face hatch ribs are fit to the upper oak edge. I've got the bottom oak seal rail cut to length. Now I have to install the positive stop for the weatherstrip gap to the bottom seal rail. Once I have the frame perimeter glued and screwed together I'll start to fit the center ribs. I also think I'm going to corner glue block the heck out of the rib attachment points to the rails. I have to screw into plywood end grain to attach these ribs. I want to back that up with glue blocks too.
Hope to get a few more hours in on it tomorrow.