I though of something while recently re-reading the Creating Force Beta document.
Units require a certain amount of spare parts to keep running, beyond repairing battle damage. In my mind, these are minor parts, like replacing spark plugs and gaskets in a car as opposed to replacing the transmission.
The question is, if you salvaged a `Mech and completely stripped it for parts, what quantity of "spare parts" would you obtain in addition to the big items (armor, heat sinks, engine shielding, etc.) that are usually salvaged?
An Archer requires 140 pounds of spare parts per month at a cost of 700 C-Bills. If an Archer were completely stripped, how many months of spare parts could you get?
2d6 months worth? Maybe with a penalty to the roll based on the number of destroyed locations?
Incidentally, I don't like the rule in the Force Operation Beta document that spare parts are specific to each `Mech or vehicle, since the TROs specifically reference `Mechs that can't use the universal parts that most `Mechs use, e.g. the Clint. You probably should be able to obtain "`Mech parts" instead of "Archer parts", "Marauder parts", etc. I know, rules trump fluff, but anyway...