search contents with filters

Hi.
I imported the old site based on Joomla http://www.italnoleggio.it into a news site with WP and Enfold -> http://www.ilredelweb.it/italnoleggio.

Now I have all my contents imported into posts.

In order to have an advanced search (price, brand and type of fuel) as the old http://www.italnoleggio.it/blog/news/quanto-conviene-il-noleggio-a-lungo-termine-di-un-auto
what would you suggest me:
1) keep all the contents in posts
2) move all the contents in portfolio items
3) move all the contents into woocommerce products

Thanks for you patience, Gianluca