Chinese Amphib Vehicles

[Imp]

Think there might be some size errors in Amphib Tanks anybody give some correct dimensions.
I think with the exception of the Type 60 (unit 472) which is size 3 & a PT-76 clone the rest all jump to size 6. Did not think Type 63 was a lot bigger, there are several versions in the game.
Unit 739 might warrant size 6 due to the prow & flat sides giving a large profile though trying to find out if hull is smaller than troop carrier varient.