storing suggestions for our 2013 Hobie Kayak

We have been given two 2013 Hobie Mirage Outback's from my elderly father in law.
We prefer to store them right side up for ease of use with grandkids in mind.
We understand not to store them on the Hobie wheels.
We bought the C-tug with rails for easier walk to the water.
Pretty sure they are also not a way of storing the kayak when not in use.
I understand too that the strength is in the rails.
So what up right storage solution have you used?
Are cradles a good option?

Really appreciate your input, perhaps photos as well.

Here is the official Hobie recommendations on storage.

https://www.hobie.com/articles/storing-your-kayak,85/

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Dr.SteelheadCatcher
Warrenton, OR