[Fyron]

There are low asteroid versions of FQM quadrants available, which have only 2 asteroids per solar system (though there will still typically be a few with more floating around that you would want to remove for use with Proportions). I may have only included a Mid-Life "no ast" quadrant by default, but it is pretty easy to recreate "no ast" versions of most other quadrants since they share the same system definitions, just different layout headers at the top. Notable exceptions include Paradise, Ideal, Old, and Ancient.

You can generate maps with FQM Standard that work in stock and many mods. If Proportions made no changes to SectType.txt, these maps should work fine. FQM Deluxe is much more interesting, however, because it seeks to make the planet types and atmospheres be balanced, largely through massive editing of SectType.txt. You could probably just put that file into any other mod and get the balancing. You may have to remove entries for small RWs and Irradiated planets, and change Ringed planets to Tiny size, but I am not sure.

Also, note that FQM includes some maps and system ability modifications based on some stuff from Proportions.