For people wanting to get a nostalgic set of gear...does anyone have an idea as to which belt was intended to visually match with this set?

You can not use this set for transmog unless you have the feat of strength of ""Warlord"", ""High Warlord"", ""Marshal"" or ""Field Marshal"". If you do have the feat of strength, you have to buy a different set of gear to transmog it. I have confirmed that this is correct. This limitation was created so only characters with the feat of strength could wear this gear in transmog form because the actual gear is available for purchase with honor points to everyone. The transmog-able gear can be bought in Area 52 from, Leeni ""smiley"" smalls (https://vanillawowdb.com/?npc=52533"">(NPC #52533) )

edit: apparently you only need ""Legionnaire/Knight-Captain or higher under the old PvP system"", quoted from a blue post on blizzard's forum (http://us.battle.net/wow/en/forum/topic/3657275742?page=9#178 http://us.battle.net/wow/en/forum/topic/3657275742?page=9#178 ).