Looting and foraging are two different things. I find the ability to find and conserve food is a lot different than burning and looting down villages. But I suppose you could look it that way if they are infidel villages.
Yes I know, just wanted to be funny. But in terms of historical accuracy, think about it twice - which army would live off the land, i.e. hunting, conserving food, etc.? Or was it more the case that they went pillaging and plundering around and called that 'living off the land' during the Middle Ages and during almost every war before that and since then. And they did not only pillage, steal and plunder enemy settlements, this is a wrong conception of the term 'living off the land'. You cannot provide enough food by hunting etc. in the short amount of time for a whole army which is constantly on the move. But I have to aqree that it would be a very nice pastime for the player... oh how I loved to hunt in Brytenwalda...
If you do so many changes for every revision, that's some hours of work, why don't you just copy the essential parts of the diverse txt-files from the older revision into the newer ones? For instance copy everything concerning shield from the old itemkinds1 and paste it into the new itemkind1, that's about 2 minutes and there you have your 150 shields. The same for helmets, horses, companions or whatever. You just have to be careful as to not add/delete some spaces or something or if there's new items which might conflict with the old ones, etc. As a backup I just copy the original to some other folder, in case something goes wrong I will simply swap the changed file with the original.
May I ask, how did you tweak the shields, for instance the original heavy heater has something ~60 hit points, and a resistance of 67, what's the values of your new heavy heater? Another thing which might help with shields if the shield skill is abolished, could be to increase the radius of the shield's defense. So, in the above example the shield has something like 75x59 shield radius, maybe this could be increased to 90x70 or something, in order to compensate for the missing 'invisible force field' which comes together with the shield skill.