Sorry, I should have directed my remark to Travis, aka T_bone.
An added fact is that the pattern for the 5 threaded inserts provided for the bolts that fasten the tt chassis to its plinth in all 3 models, the MkII, 2A, and 3, is identical. Hence, you can drop a Mk3 into any of the 3 plinths that Travis described. The MkII and Mk2A would not fit into the dedicated Mk3 plinth, however, because the underside of the former two is square whereas the Mk3 is circular.
An added fact is that the pattern for the 5 threaded inserts provided for the bolts that fasten the tt chassis to its plinth in all 3 models, the MkII, 2A, and 3, is identical. Hence, you can drop a Mk3 into any of the 3 plinths that Travis described. The MkII and Mk2A would not fit into the dedicated Mk3 plinth, however, because the underside of the former two is square whereas the Mk3 is circular.