Your plan is solid so far, though wowhead is less useful for queries sometimes with the new scaling. Armories and asking around is the best thing currently. Here are a few things to look at that might be helpful depending on what you're looking to make.
- BG crate blues are almost always really good if you get the right stat suffix(es)
- Leather/Mail int users will want to look at the WC set for the set bonuses. Holy pallies can also look at this, but it won't drop for them, so a 19 mail user should go with and trade them the drops.
- BoE Legs can get str/agi/stam enchants from MoP - no int options, so probably go with BoA
- Heirloom shoulders/legs can get high level enchants
- AB belt/boots are often high in verse and the boots have a built in speed enchant. No plate options tho
- Minor Speed is the only boot enchant that stacks with cat/travel/ghost wolf/cloak enchant/etc). AB boots and "hybrid" enchants like boars speed do NOT stack. It'll depend on your class/playstyle if you care about getting the most movement speed.
- BoE gloves let you get glove reinforcements, which can be useful for most classes. Many will want other gloves with primary stat enchants, but it can't hurt to have multiple pairs.
- Neck/Rings have some options with primary stats and some options without it. Gotta know how much you value primary stats vs secondary stats for those.
- Heirloom neck has primary stats and the on-use hp pot, which is always solid
- BG crate and dungeon satchel rings have primary stats. BoA shipyard rings as well, but those only have crit IIRC
Hopefully that helps narrow things down a bit.
