You could use the ACF Repeater field which will contains multiple rows of the ACF Post Object field (or Page Link field) combined with others ACF fields like the price, etc.
Otherwise, I’m also a longtime user of ACF, but when it comes to create link between posts together (they could be bi-directional, which is not possible at first with ACF) I still prefer the Posts 2 Posts plugin with which you can also add specifics fields (not ACF ones) in the relation between the two posts.
