To respond to the original poster:
Templates already exist:
http://wiki.project1999.org/index.php/Help:Contents
Item Import tool:
http://www.destinati.com/project1999wiki/wikiUtils.php
Also, the bronze armor page exists:
http://wiki.project1999.org/index.php/Bronze_Armor
Info is not provided for small/med/large because most players know how that works. Resale is not provided because NPC sale values are based upon factions that may not be the same between two PC sellers. Finally, the page you created does not contain the EC tunnel auction house data, which for something small like bronze armor might not matter, but for more mainstream items is invaluable.
You are free to contribute to the wiki and provide updates. But if you want to create massive overhauls to the system already in-place, I suggest you work with people that already contribute to the wiki to get the templates updated.
Ravhin has been very active with the wiki.