take a look at some of the wikis of the barcamps happening in india...
setup a similar wiki on ur domain or on
barcamp.orgvenue is already taken care of. but try to keep ur room slightly off-located from the other events.
i would suggest since u are doin the camp with a fest, dont offer freebies.. that will improve the s/n ratio and quality of crowd. it also eliminates the need for sponsorship... watever minimal costs you have could be taken care of by you festival committee i guess.
dont over-publicise the camp. do some targeted publicity so that only the critical mass knows it is happening.
regards,
mitesh ashar