Hi Steven,
I can develop this stock adjustment web application for you with all the features as you have described in the description PDF and add the workflow as shown in the Mockup PDF.
Similarly i also went through the Mockups of the stock adjustment Web Application UI and can design much simpler and easy to use one like this.
I've already developed many web applications like this so its really which acts an interface between ERP / CRM and Magento and also has good skills with API development, so you can rely on me completely for this task.
Thanks a lot for this great opportunity and waiting for your response.
Regards,
Jerome