Nice try Calimero. You're right, that hits all of the details I gave, but I would have recognized the Stuart as I have built half a dozen, or so, in 1/35 scale over the years. Thanks for trying...I mean it.
andekmcc - I still think you're close. The Vickers have the vented side skirts like I saw (the earlier makes anyway). I swear I'm gonna find that pic.
Thanks again, everyone.