MySQL with DBP is a bit to slow for making a MOG/MMO, to be honest.
Although since you said it's going to be text based, that might not be an issue, although it's your call.
You mentioned a combination - I'm right now creating (or well,
trying to create
) a "MySQL Request Handler",
combining the two of RattleCustler's SQL plugin and DarkNet. More specificaly, you send your request string to the server,
it executes it (if you're on localhost the connection doesn't take as long time - <1ms), and then sends back the data retrieved (if any).
You can try putting this together yourself, or email me at nizze@nizze.net and I'll send the application to you when (if) it gets done
EDIT: Oh and also, I think this way is a safer way too, by only letting root@localhost in to the server, instead of providing direct access for everyone to the database.
-- Nizze