Hello,
Having more than a decade's experience in the IT sector, i can provide you with a cURL system with your PHP in order to get clean and authorized access to your second domain. If you check my profile, you'll notice that I am a technical lead in the sector and the client satisfaction is my utmost priority.
I will make the upgrades of your queries from mysql to mysqli as well. There is a setting to to modify in your [login to view URL] and then mysqli will be up for utilization.
Upon our discussion, the bidding price can decrease, depending on the quantity of work you require and based on your expectations.
Working using an agile methodology, you'll get daily updates on the progress of your application. During which, you can ask for modifications and enhancements if they fall within the deadline.
Realistically speaking, the application would be upto your standard and it would be delivered to you within the planned date of release.
I hope to get in touch with you regarding your product.