Stanley makes an affordable and stacking tool case (Stanley Sortmaster) that interlock together when stacked atop one another.
I find that two of these work as exceptional storage solutions. If you always carry them horizontally, you don't need much else to protect the figures (ie, I think pluck-foam or custom-cut foam is a bit expensive and excessive for miniatures as durable and light as these). I do use a little bit of foam stuffed between my Vics to keep them from sloshing around and breaking antennae, but that's about it. The cases are deep enough that fighters fit upgright on their stands, and the middle compartments easily fit four stands each. It will also accomdodate all ship models except the ISD, which is just a bit too large.
So, I use two of these Stanley cases (one Reb, one Imp) and the Core Set iself for everything else. The core set box has the cards, tokens, obstacles, movement tools, upgrade cards, and ISDs. It's a big stack to carry (two Stanley cases and a Core Set box), but it's one load. And if I know I only need one faction, it's half the stuff.