OH: T1 + BP1 + T2 + BP2 + T3 + Medics = 770/175/60
SU: T2 + Medics + Grenades + T3 + T4 = 990/205
Both factions start with 20f and OH has a surplus of 30mp
PIV: 350/120
T34: 300/90
Fuel wise they arrive at the same time while you still have an advantage mp wise.
I'm sorry is the t-34 locked behind grenades? Is the pz4 locked behind medics? Why not mention the SOV muni advantage unless you're being disingenuous?
I get that there are probably other things you want in a normal game, and I'm fine with discussing those.
If you follow a straight path to the t-34 it arrives earlier than the pz4 though. Any deviation from that straight path is because you found something more valuable than having the t-34 at the earliest time.
E: If you're going argue that you need to add optional tech for the reason of symmetry, then you haven't included bp3 and OST t4, or SOV T1