This is what I'm going to use. I got one from Home Depot for Xwing which was much larger and half the price but they don't seem to carry them anymore.
This is the one I recommend. It comes in a 2 pack for $10- already far cheaper than most other tackleboxes of comparable size out there. The boxes lock together so you can stack as many of them as you want and they'll all stay together. They are big enough to hold a VSD- don't know about the ISD yet though, but they should be fine. And they have a lot of customizability to them.
I currently use them for all my X-wing stuff. I have 4 of them total- one for each faction plus one for general tokens/dice/range rulers/templates/etc. They're fantastic. Would buy again. Would recommend to a friend or family member.
How snug is the VSD?
Are you using anything (foam or other) to cushion the VSD?
Finally, are you taking apart your squadrons or can you leave them fully assembled and still fit them in that box?
