Instead of a full set of looms, make one trinket. It would be something like:
Heirloom of the Champion (Alliance) / Heirloom of the Legend (Horde)
Item Level 1
Binds to Account on Realm
Equip: +10 to all stats and increase Experience gain by 65%. Stacks concurrently with Guild Experience Perk.
Requires Level 1 - 85
Requires Faction - Exalted (Must be exalted with all 6 Faction Races)
Cost: 10,000 gold
Then, once you have at least one toon Exalted with all 6 races, you can purchase this trinket and mail one to each alt on the realm. No more need for BoA gear. This would give each all the "gear bonuses" without having to wear the gear. Just my opinion.