C-951 Sportster

Hey All from East TN lots of rain this year.
Suggestions for roof sealer? I want to make sure that’s done.
There is two metal skin tears. Not bad one on cab bulkhead about 4”. And one on driver side where cab over starts about 2”. How to repair without removing? Any topical applications?

Also the jacks all seem to be adequate, but the front driver side mount has loose bolts?! Don’t know if I can remove plate and install a bigger plate from edge to inner wall to reinforce ?

We like to add an AC to it, and the roof vent over the dinette appears to be the location, that hopefully is reinforced? Some pics I’ve seen show an AC there.

The cab over appears to have minimal issues, one possible leak evidence below passenger window. And driver side wall, small patch of mildew, mold on wall. So she leaked somewhere. No smell yet thankfully.

I haven’t fired up appliances yet. Previous owner said it’s been winterized. Due to non use since last year.

So get a soap/water spray bottle ready and check the propane connections before lighting anything.
just getting started!
Thanks