re: exchange
@Pastafarian
Sorry I am of no use on tech issues. but would like to suggest listing 420 pairs NOT 420coins paired with btc (why .. it is already done and chances of competing with the main exchanges is slim ... very slim).
example:
pot/stv
cann/stv
cnn/stv
dope/stv
bonger/stv
mary/stv
and since POT is the most liquid maybe do it as a pair also
mary/pot
cann/pot
cnn/pot
(extra suggestion)
charge fees in STV
i didn't get any comments/feedback but I think it ought to be moved to project numero uno for #420 JFA
and any updates on the original main project of #420 JFA? the Brick & Mortar thing
https://bitcointalk.org/index.php?topic=967364.0 
DAPP <> DAO <> collective EXch direct for each other without need of BTC
also keen on the idea auction vs. the standard bid/ask books that are cancel-able
this means just like ebay you can't retract your bids
time the offers/listings for 12hrs
(dude just realized that 'topia' Kind-Da has that platform in place!)