I could do a basic version of this, wouldn't want to take 500sbd from you, probably the upvotes would be enough of an incentive :-)

My idea would be for a landing page to take a user name, then return a list of their top tags and posts by upvote count and reward total. It would either use the steem api or one of the blockchain databases. We'd need to get in touch with whoever manages them to ensure that whatever solution we made would not put too much strain on their system.

Also happy to work with someone - technically my idea would be a simple php landing page with bootstrap, which either queries a database with sql/ similar or the api with javascript - like a more advanced version of my project http://steemforthe.win