Star Wars Legion: Expanding the WotC Forces

I have a gaming appointment with Michael on Monday, and I expect to introduce him to Legion, and I would like the game to have a bit more 'oomph' that the first one, so I checked my WotC collection and was able to build another Stormtrooper squad (actually, when I start using the optional support weapon troopers, I can probably build four), while the Rebels got some Fringe-walker-thingy to use as proxy for an AT-ST.

I really need to start assembling those Scout Speeder Bikes...