+1 for the Bigfoot, it's the only way to go and I think most keep their psi at 3 to 4.
There are different Bigfoot options too
bf light fit on STD rims but normally come no thread
bf full moon fit on the cadkat tim and have 7 to 9 lines
on the rear you can also run beachracers on asymeric rims too.
I have a used pl Bigfoot+ on bf light front wheel and bf light on AS rims on the rear. It's currently in Oregon right now.
If it doesn't sell, and anyone need a buggy to use anytime when youre at sunset beach call me and it's yours for the day.