I'm in no way affiliated with these guys but [devil's advocate here] isn't OpenBazaar(.org) already doing this using the existing Blockchain and BTC? You maintain your own inventory thru JSON etc and the website just puts a pretty gui on it. Kinda like nameid does it with their json implementation.
 
#1 What does Syscoin offer that btc and blockchain 1.0 doesn't (or WON'T)?
 
So many Devs out there want to say they were the pioneer of something and that's awesome, but dude if we work together we can get decentralization and distributed systems into the mainstream a hell of a lot faster. Other than total anonymity, I think btc and the current blockchain have solved a hell of a lot and here's another 84 reasons why blockchain 1.0 works great:
 
http://ledracapital.com/blog/2014/3/11/bitcoin-series-24-the-mega-master-blockchain-list
 
I'm just sayin. Not lookin for a war with a Syscoin cheerleader. Sho-me-da-money as they say.