You're looking for something smaller than an Esbit? Wow, that's gonna be tough to do. You could go with one of the tiny little alcohol can stoves but you'll pretty much have to bring a windscreen and a fuel bottle to go with it which will negate the space savings.

I can't think of anything smaller than an Esbit that works worth a damn.

Let us know if you come up with something.

Otherwise, I like your kit a lot. Does that bag sling over one shoulder?

JohnE