LOL! Stitches are a possibility...but it makes a nice clean cut.
Looking at new storage options myself. The "E-Series" tunnel bags seem pretty good. I have the stock Doo gas buddy but it almost has more capacity than needed and it takes up a lot of space. I'm thinking of looking for a small under-seat bag like yours, smaller gas can, and new tunnel bag.
BTW, I always carry some charcoal lighter. Makes the trail fire a lot easier to get going. Maybe should look at the Muff Pot (if I can get past the name).