I just replaced mine with 14g stainless, I had a machine shop to break it and it goes over the inside and out with top motor bolts on the inside and outside.
it was about 52" long 3 1/2" inside width and 4" and 4 1/2" hang over
cost about 75$
I’m not sure glasses over is the answer. A lot of stress and small give movement at transom. I went with 5200 and filled in the gaps. Has some give and movement for the two pieces of hull to give and not be so rigid like a California sky scraper. Seems to be working great and caught my transom in time.
4200 for me, mine looked perfect when we took it off. There’s an Aluminum “plate” between two fiberglass sections on mine (265 Express) and we used longer SS screws and used a tap and die set up to secure them before dumping a tube of 4200 and spreading it everywhere