Adding T-34/85 would make this doctrine too OP, especially in team games. You have fuel drops and pretty competent 85s plus heavy KVs a bit much.
Fuel drops are irrelevant unless you plan to not upgrade penals, throw grenades, build repair stations or use self repair etc...or as soon as the first bit off aa comes out.
I don't see how the T34/85 (which would be the best choice as the KV1 is still a bit poor imo) would make the commander OP. Considering there are commanders with elite infantry (guards motor) or a better heavy tank (armoured assault). The only thing this commander really has is repair stations and the KV2.
The kv8 is available in much better doctrines but its alright.