For 5 kids, buy 2, buy them on sale, buy year end clearance, buy used. Spend like a few hundred $$$$ the kids only care if it keeps them dry.
You can easily fit 2 on a Yukon XL.
I'd turn them 90 degrees so the entries face each other,,,, communication, bonding and all that.... plus a 24"??? landing between leading to a single ladder,
No annex, keep them simple. More like the Free Spirit.... x2.... facing each other.
If the kids want privacy.... spin them 90 degrees and add a ladder.
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