Hello, I am a senior web developer of 15 years with specialization in Drupal and LAMP.
Will you need authentication service, or do you have an authentication service in place? This is necessary! Without session checks a hack would be able to upload whatever they want to your server.
I give estimates at $50 pr hr, with $150 pr hr for additional hours for late dev changes. PM me with more information if you are interested. If you need auth services I will not be able to do it within your budget. You will also need to provide a server or have me set one up.