I'll go stock it now - the old location is effectively an area of north Malas that is mostly B|F, MHC and other alliance members' homes. It is a little west of the tunnal through the mountains near the most overpriced smith BOD sellers on the shard (at one time, the smith BOD shop was called Mentor's BOD mall, but the name's been changed to protect the greedy). In all seriousness though, I think the seller is just a a BOD hoarder who prices them so high that they won't mind even if someone DOES buy one of their BODs (they want more for each small than most would pay for the reward for the large).
The vendor where I have the sugar (it's a box of 17 for 10k) is XMHC vendors, which is next to the spot where LOST Auction was prior to last week (last week they moved to a location inside Luna).