Contract Gig - Fantasy Sports API

I'm looking for a developer to assist me in creating the below. It is using the Yahoo Fantasy Sports API, and specially just for the fantasy football.

The process I'm hoping for would be the following:
1) A webpage (ideally PHP) that a user would visit, it would do all the calls to load their vital league setup information (league size, team names, logos,etc.).
After processing, the user could then save a file (XML) to their computer. (I will then then be tying this file into a desktop app I created)

2) Another page a user would visit where the user could then upload a file (XML). This file would be essentially a roster list (of players they drafted using my desktop application) that had all the vital information, and it would essentially update their league's rosters on Yahoo.

If you think you have the capabilities to do this, please let me know.
I'd love to get this job rolling as soon as possible.