Basic WordPress Posting Plugin

Greetings I'd like a basic plugin or php script that allows me to submit a blog posting via a simple HTTP POST operation. I would post the following fields: Title Body Category The deliverable will be: An HTML form with three fields (title and body,categoryID) When posted, the HTML form will create an active blog post on my blog using the values in the form. I cannot provide the xmlrpc_encode_request functionality on the server, so this solution would have to work without requiring this functionality. Mention in your reply how soon you could start and when you could finish. I will give additional consideration to coders who are able to get on this right away. Thanks and good luck bidding