u/Forward-Ebb1642

I'm fixing up damage in a 1985 class A to make it livable. The previous owners used superglue material to "fix" the leak. The photos are after a little demo to assess the area, im going to replace all the plywood and insulation in the kitchen but im unsure on how to approach reframing around the vent so was wondering if I could get any tips or tricks. It's my first rv BTW I know I got my hands full but idc I know it can be a lovely home and I have tools and a list of measurements and materials. Thanks for letting me share!