Magento products uploaded by users

Hello, I am looking for a magento programmer for upcoming Magento work. Budget is 200 to 800 USD for some ad-hoc work over next 2 - 3 months. If you have some/good magento customization skills( 3 -6 out of 10 is enough ) message me. The work will be around tweaking a module ( likely Magento Marketplace by webkul, google it ) It will need some modifications. First before deploying the module, I would like to see if someone can create the equivalent functionality within the budget of 350 USD, which is the module cost. If someone is interested at this budget, you have the chance ! Check it out and message me , letting me know what you think. Assuming I hire you to do customizations to the module, instead of creating it, the customizations will be these: - Configure an php in-page control to display two selectors for categories, instead of one. - Add captcha to the product upload process. - As products are created by the for-mentioned extension, the products do not include the userid, of the user that created the module. Therefore I need you to tweak the module, to pass on the user parameter to the corresponding magento product. This will involve creating a Magento Attribute. Then the module must be modified that when a user creates a product using the module, the userid is passed on to the resultant product. Development Process: ====================== All development is to be done within Magento Framework. All code modification must be preceeded by a comment like this "//fcode : This change does that" You will not have access to the production server. Development will work like this: 1) You install Magento plus extension on your computer. You test/try achieve a functionality. I approve as a user tester. ( your installation must be available on the internet ). 2) You provide a written instruction for the customization and with any modified files. 3) I deploy the customization, following the instruction in your change. Others ========= You must BE AVAILABLE DURING WORKING HOURS in skype, where ever you are. NO "after-work" contractors for this one. Do not send company resumes, I do not read these. Recruitment will take only 2 days. So hurry on ! And I want to keep the magento connections. Opportunities for other Development work as part of my team.