change php yii app layout and fix bugs/changes

Howdy, Designing a web based application that lets users edit, add and change a form based database of companies, addresses and contacts. Similar to a simple crm, this application is built using Yii framework and yii-bootstrap. Looking for an experienced developer to work on front end layout changes and work on around 50 bugs and changes. Please see attached for more details and only bid if you have experience coding php yii MVC framework and using bootstrap. This project is for $500 however a $100 bonus will be given if completed in less than 3 weeks. There will be more related tasks (worth +$3,000) after this if you are good. Milestone of $500 created and only released once you have completed all tasks. Bugs need to be completed before financial release. Any new changes very separate to original fixes, will be added to next phase and priced separately. If you cannot commit to this, please do not bid. Thanks