I've just finished mod of my Primus Omnifuel stove. The goal was to make it easier and faster to use on snow. It will make it possible to start melting snow for water even before setting up a shelter.
I've used just the burner with tube and valve from the original stove. I intend do use it with inverted gas canister.
The burner connects to a thin plywood base. Light aluminium cone serves as a wind protection as well as pot stand.
Total weight is 400 g, about the same as the original stove and windscreen.
The setup works fine (at home only so far), the only downside is that I have to light the stove first and then put the cone on. I tried to add a piezo ingiter to fix this, but it was to weak for this type of burner.