Add-on [Paid] In search of advanced developer for custom script integration

I am looking for an advanced developer who can integrate and improve a custom PHP script I've built. The short description, it is an online bowling league journal. It records weekly scores and tracks bowler averages.

I want the script to be embedded in a discussion thread, to allow for community replies. There's a graph that I'd like to "Post to Facebook".

The script itself is old and needs to be re-written for speed and MVC standards. I do not have a time limit or budget defined. The developer will need to help with this. Can be hourly or flat rate.

Here's a screenshot of the old script.