Larry & Lou,
My apologies for never responding back to you last March. I just lost track of things and it fell off my plate - I'll blame advancing maturity
. Anyway, we did head out west and had a marvelous time in South Dakota/Wyoming/Nebraska and points along the way. We did overnight at Portage and, as you guessed, it was empty. $20 (payment kiosk right at the site) that included 30a electric and a dump station right there. Worked out great - easy on/easy off the turnpike (got some good sleep to ease my nerves for the long drive through Chicago the next day).
We do appreciate your offer though and if we ever get your way again, we'll keep you in mind.
Frank