Hi,
Well, this is a tough one. If you have not too many pages, and they don’t change very ofthen, then excluding the remainder manually by ID is the best bet.
However if the pages change ofthen and there is a lot of them, then perhaps consider creating a taxonomy and put the excluded pages there and exclude that.
If none of that works, then still you have exclusions by custom fields.
I would not use any type of inclusion rule here, because for the items to be included they all have to match the criteria – that also applies for all post types, including the products.