It's been a long while since I updated the OP. I find transacting through Localbitcoins.com as a more efficient way of running this service. There is automatic updating of the price. You get price quote immediately. Anxious new clients can use escrow right on the website.

Please go to my ad to make a transaction. If it says that trader is on vacation or out of bitcoins, try another day.

Also, would anybody be interested in trading Bitstamp ripple USD for pesos?