Advanced matching and pixel optimization

The business runs a few websites that collect leads and make sales. The websites have about 100,000 visitors per month There are a few issues 1. I need the pixel to send through ecommerce product value to Facebook. I use the MIVA shopping cart 2. We have forms on the website I would like to use for advanced matching. 3. I need to be able to collect within my signup form the campaign, ad set and ad that sent this visitor to the website and pass it on to my CRM. This way I will be able to attribute sales made off line to specific campaigns and ad sets and will be able to put more money in the campaigns which actually deliver end sales and not only leads. My lead form uses a POST method to the CRM so all I need is to be able to collect the extra url parameters, store them in a session cookie and then send them within the POST. I will take care of collecting this into my CRM. All I need is for the information to be in the POST. 4. Potentially store specific events in the pixel to show dynamic ads based on information collected on the website. Although sales are not made I’d like to show ads based on information people gave me regarding their weight loss goals. So if a person wants to lose 20lbs I want to be able to show him one ad but if he wants to lose 30 lbs show him a different ad. The urls are [login to view URL] (only leads) [login to view URL] (only leads) [login to view URL] (leads and e-commerce ) Our website is: [Enter URL] We will provide the following information as needed: - Facebook Business Manager access - Facebook Pixel and Product Catalog assets - Website administrative access including tag managers & online platforms