Multi-Criteria Rank System, Search and Comments - Joomla! Forum - community, help and support

hi everyone,

i'm creating website needs have multi-criteria rank system, allows search per category, have comments per item , can show list of items best ranked items each criteria.
the rank system filled using xml file generated survey result contains values each rank-category. create php file include values inside database.

each item ranked different things, , need show list of best ranked items each category.

here things tried:

install simple_review (http://extensions.joomla.org/extensions ... views/4725):
i can create different ranks each item can't make search per category.

install sobi2 (http://extensions.joomla.org/extensions/1113/details):
sobi2 allow give 1 rate per item can't create different categories items.


i guess best solution problem extensions called jreview it's commercial extension , find free solution this. i'm developer i'm thinking in use 1 options above , make changes requirements.

i know best solution , if else has other ideas try. said don't mind if need make changes @ code adapt extension, know easiest way , how can use develop included new features in 1 of extensions.

thanks lot help!