Built this T29E3 beastie for the recent TAKOM Campaign link
As can be seen, I added an interior to both the hull and turret to take advantage of those lovely big hatches, using a mix of traditional plastic scratching and 3D-printed stuff I designed and printed on Shapeways
. The Campaign thread has the gory details, but the key findings were the need for an extra track link on the right-hand track, microscopic toolbox handles, and a covered mantlet that takes some arm-wrestling to make fit. The only markings are WoT gaming fantasies, and as I painted mine to be the sole evaluation example in OD I was stuck.