Perhaps you can use the encyclopedia I'm currently compiling. I have already entries on weapons, northern ships and some armour. The more I research this, the more faults I encounter on mods that are further very historical. If you do not understand something or want to know more, just ask. My database is focused on the central and northern europe region (HRR, PL, LT, Scandinavia unto russia) so you wont find specific english or spanish weapons.
http://www.twcenter.net/forums/showthread.php?t=323830