To add sunder armor, you probably need to add a new combat message event to the config. I beleive the two events you need are CHAT_MSG_SPELL_PERIODIC_HOSTILEPLAYER_DAMAGE and CHAT_MSG_SPELL_PERIODIC_CREATURE_DAMAGE. Go to sct_event_config.lua and add those events to the sct_Event_List table. You should see the examples there of how to add it. After that your sunder event should work correctly. However, note that the combat log does not report who does the sunder, it just says "Target is afflicted by Sunder Armor", so you will get the SCT message anytime someone does a sunder, not just you.
For the cooldowns, I believe there are a few mods that add that ****ionality to SCT. One is SCT Cooldowns for spells
http://www.curse-gaming.com/en/wow/a...cooldowns.html. ItemRack does it for item/trinket cooldowns.