Idea to combine 1 main autoblog with multiple sales pages for ppc keyword landing pages

Howdy,

I have an idea to have a WP autoblog in my domain; like bestbrandreview.com (mine btw)
and use it as an umbrella domain; with drip feed articles, rss feed content, other content.

Then, I'd like to find a WP Sales page to put different offers on keyword matched urls; like an offer for 'acne solution' on bestbrandreview.com/acne-solution.html

I need the WP Salespage theme to work in WP 'pages', not posts. Posts get shoved down the page as more posts are made. Pages can be put in themed 'categories', so I could have multiple pages for matching ppc keywords, like acne-solutions.html; acne-cures.html; acne-treatment.html; etc.

I've seen some WP salepages but most seem to be themes that sit on the main domain, or in 'posts'. I need one I can publish on 'pages'.

If I put the WP sales page on a subdomain, then it is considered a separate domain by Google right, and I lose the benefit of the main content blog.

My other ideas to use html static salespages instead of wp sales pages to get the ppc keyword matching the sales page keyword URL. If I use uppercase first letters for static pages, I should be OK not accidentally messing up a WP page; like bestbrandreview.com/Acne-Solution.html for a ppc 'acne solution' keyword. Right?

I am new to blogging so I would like to hear your opinion on my idea and how it could work.

Thank you much!

Aloha,

Will