Buying a 2019 EX - Buy the Honda hitch and roof rails as options? Or buy third-party?

I'm going to buy a 2019 CR-V, EX trim over the next week or two.

I'd like to be able to put as a big a box as I can get away with on the roof, ideally in a configuration where there would be room for both the box and a canoe (or a bike.). I assume this may necessitate crossbars that stick out a little on the sides.

Additionally, I'd like to have a hitch-mounted bike rack that can fit four bicycles.

In buying my CR-V, should spring for having the roof rails ($399) and the trailer hitch ($508) added? Or are there better/less expensive third-party options I should look into?

Also, what are my best options for adding a big box, and a hitch-mounted rack for 4 bikes?

All advice or input appreciated! Thanks!