[plastictree]

I normally buy historical formations (eg. in my current British v USSR campaign, I bought a Mech Inf HQ which includes 6 SPMortars and Milans, 3 Mech Inf Companies without Milans, and 1 tank company minus 2 tank platoons), but never include support elements such as engineers, SP or off map artillery or helicopters in my core buy except when a formation has organic support - such as Armoured Cavalry Squadrons (or regiments? Can't remember which) that have an organic SPA battery.

I normally do go a couple of battles without repairing, but it would make it far more of a challenge (in a good way) and make people far more cautious if the buy points were physically restricted to that degree.

If you restricted by say -80%, using rough calculations off the top of my head, that you could repair one or two vehicles per battle, or replace infantry losses, or else wait a few battles and have enough points to repair a few platoons in their entirety.