If you want Allied tanks I suggest Pershing. The Tamiya Pershing (HL's Pershing should be the same dimensions) is 21inches long (counting the barrel), 8 inches wide and roughly 7 inches high. The Tamiya KV-1 (HL's KV-1 is roughly the same) is 17 inches long (counting barrel), 8 1/2 inches wide and 7 inches high. I don't have a Sherman to give you the dimensions.

Duane