Great video! Hey I am familiar with the Ha-Go here at the Oregon Military Museum. They are taking special safety precautions during their restoration efforts because the inside of the turret is normally equipped with an ASBESTOS heat shield blanket all over the inner surface of the turret. Hopefully that has been removed already on your tank, however, be on the lookout for it! Just in case it is still there. Wet removal methods within a containment bag work best to remove that stuff. Good luck in your resto! Jerry