Well, I managed to work in most weapons suites, PI, Assault Troopers, HAT/ASP, Commandos, Recce Commandos, Recce Troopers. I added a "PI support" frame to kinda-sorta carry the weapons associated with the HQ section and bring the Calliope and Auto-RAM into play as ordinary PI weapons.
I knocked the Calliope back to 2 ammo, both as a legacy of an older version of the list where I was working with different point caps, and because the damn things don't really work all that great so they might as well be cheap.
I up-gunned the Blaster to compensate for the lower availability of attack chits and the lack of auto-fire, and just because I thought UNE Commandos should be scary.
I had to pare back some of the less significant (outdoors) weapons on the standard Behemoth as they were wasting points and frames. I wanted to keep the RXS as infantry, but it wouldn't take much effort to make it AME.
Currently I'm going with a fairly low % Elite (only 25%) relative to Vehicle and Ad-Hoc. I reason the Commandos are mostly underground or committed late... and fairly inflexible. Also: the UNE vehicle I have- the Superfortress- is really pricey and I want to field it pretty much every game The high ad-hoc allows for some of the Planetstorm/ LOS flexibility, and I figure the UNE are sort of WW2 Americans, who as far as I understand, showed a remarkable ability to regroup and reform ad-hoc units after bungled drops and heavy casualties.
I've worked in a Ford FAV and have a placeholder for an APC. I think the Pig Iron Ironshield/ Ironstorm might be the only real option considering the size of the later sculpts, which were unabashedly 32mm scale and sometimes hit 40mm.