Hi, we can build the site using worpdress cms and the blogs you need to scrape will be able to manage from backend as well as listings. And for indexing i can think a solution that may work for you.
As the google won't index anything in a link after ? (question mark) there won't be any advantage over seo for your website links and they won't get index. Other thing is if we redirect these links then google won't index as well. So what i can think is we create dedicated page for each of the listing we created automatically via rss feeds.
So on that page there will be a title, and some content in the middle and at the bottom there will be a button so user can click and go to the listing page. This way google will index this short page and that may give you some seo advantage over your listings.
I'll make sure the site loads faster, Responsive (supporting mobile devices) and including all the SEO features such as better manage meta, schema and etc
Relevant Skills and Experience
I have developed more than 200 websites , plugins and themes so this will be very easy for me. I know better knowledge of how the database design should be, the page structure for seo, mobility & etc
Proposed Milestones
$250 USD - layout design PSD
$600 USD - Website development html/ responsive
$900 USD - Wordpress website development
$500 USD - Backend options development
$397 USD - Feed integration
As the proposal window has character limit plz contact me so i can explain my plan in details.
thnx