Rafm Heavy Gear Troopers

Actually, the difference between 1/87 and 20mm is somewhate more extreme
than the difference between a GZG 25mm and a GW 28mm figure. I work in a hobby
shop, so we sell both scales, and I'm seen the two sizes side by side often
enough. 20mm is the scale of choice for WWII and modern skirmish, so there's a
lot availavble there if you don't mind modifying. Blade makes the only actual
20mm SF figures that I've seen, but there may well be others out there.
Somebody, I think it may be FAA, makes modern riot troops, with full face
visors. They might be worth converting. I miss the days of lead, though.
Pewter is much tougher to effectively modify.