changes to a project (php/mysql)

hello all, i have one project ..in which i have to make couple of changes (around 5-6). these changes are , 1) create one hard coded user and assign only one form to it(out of all forms) 2) send invoice through mail in pdf format. 3) one small from with 2-3 fields 4) one simple report (already a form is developed for this we just need 1 simple custom report) 5) and 2 more small changes which i will tell during work i need to start project ASAP. may be in couple of hours time. to maximum extent possible i like you to work through remote access. as these are preety small changes my max budget is 50$ for this. but its a sure project and delivery should be in one day. happy bidding.