Well, the wood frame came off today. I assembled a frame out of some fresh 2×4’s and 2×8’s and a pair of dollies we had laying about. The cart itself weighed probably three or four times more than the wood frame, so there was no worry of it not being on there good.
After adding a bit more bracing to the front section and across the convertible roof storage area, my father and I lifted the (very light) frame up and over to the cart. A quick push out to the shop lift area and I had it up to a comfortable height on the lift. I ended up using the entire mix of the “Restor-it” epoxy sealer, and the way the frame was soaking it up, I could probably use another mix of the stuff. I’ll let it cure for a day or two and see how it all works out.