1. Very good work. The choice of vehicles is good. The kits are easy to assemble and accurate. And the details are better then other manufacturers in 1/56.
2. I'd like a british valentine (maybe in combination with bishop) matilda II, french tanks (HS 35, Somua S 35 Char 1 bis), german: Pz II, Pz 38(t), Kübelwagen, SdKfz 7, SdKfz 231 ( 8wheeler variants).
3. German 8,8 cm Flak, 3,7 cm Pak, SiG 33. Maybe a set of sandbags. Or stuff for diorama like a command post - tents, table with maps, radiooperators. British 25pdr and 2pdr gun.
4. Gunners and drivers, radio operators, vehicle commanders.
5. Your decal sheets are even better than warlords