Military Grade Armor and enhacements, Arsenal Question Options

[Nefacio]

Hi all,
I have a few question regarding this particular armor and its functionalitys.

1- about possible enhacements, on page 51 of Arsenal are described several enhacements that can be made to this type of armor. However I couldnt find a price list for some of them and its capacity rate

2- Some of this enhacements are to my point of view, simply broken. Example "strenght upgrade", doesnt affect ur maximum augmented attribute? O.o Give +1 to STR per rating, ok maximum rating will be?

3- on the BBB the maximum armor rate u can buy is 10, here is the possibility beyond that, amost doubled for heavy military, I wonder, isnt it too much? and another thing, encumbrance apply from BODY x3 instead fo x2. Dunno but I think this types of armors are way heavier technology, more like a radical change upon defenders capabilities. Opinions?

4- Blacksmithing them, material cost and availabilitys, one of my group members want to make it, any hints or ideas on how to deal with it?

Regards, thx