anything that size, would probably have an ultra-light frame, which i think will not allow for installing hydraulic levelers.
i don't know of any RV of that size that would have that as an option.
it would have to be an aftermarket install and not sure if any shop would accept the liability.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC