I don't know the level of differences between the OKW and OH Tanks but isn't this somewhat covered in the expense of their vehicles? 25 more fuel for both p4 and panthers.
PIV comes with skirts (vet2 from OH), OKW PV IIRC has better mgs and accuracy on the move. PLUS both have better vet (including vet1 combat blitz).
Also, OKW has a dynamic that almost requires being fully teched out (t3>t2>t4), as where OH can skip t3. In this senario it's okw (560/230) vs OH (420/215). USF skipping cap is (520/205). I'm not going to try the Brits because I don't know the flow, but SOV do get screwed.
You are still skipping 150mp + 60muni for healing for OH. I'm not sure how you got those numbers as USF (mp wise).
@Rappy if we want the whole picutre:
OKW: T1 + T3 and T1 + T2 (with call in, specially C. PV) are also realistically options.
T2 + T3, specially for teamgames, is possible as you rely on teammates healing.
SU: T1 and skipping T2 all together doesn't seem possible unless teamgames.
OH: i don't see people skipping T2 at all, and i think those who skip T1 in favor of a more aggresive Osstruppen or Pios+MG+222 will back tech later on. OH can play as well without any T3 or T4 at all (call in).
USF: LT + Cpt + Major is not weird at all. LT + Cpt into call ins is also an option.
UKF: the only faction which can realistically survive without the upgrades till really late game (no one gets nades, 5th guy or weapons are not a must early and Bofor/Aec are optional leading to fast cromwell strats)