I've been looking at the 1/35 scale one to use as an alternative to the Goliath. With an appropriate turret I think it would make a nice one.
1/35th may be a bit on the big side, but you never know. I have no idea where my kit is buried or else I would get it out and check. I was going to use it as an Ork Battlewagon in 28mm (1/56).
My Goliath substitute is a 32mm scale Pioneer Ironclad from Spartan Games Dystopian Wars. At 6" long, 4 1/2" wide and 2 3/4" tall it is a good sized tank but still only half the height of the tripods. Someday Spartan Games may finally make and sell their Russian Coalition Tank which clearly shows the Tsar tank influence.