You can rent the AN2 at Popham although it's ususally done by a bunch of Pilots rather than an individual. We had it at Oaksey Park last year for the Luscombe Rally and a bunch of pilots spent over an hour poling up and down the Bristol Channel & Severn Valley.
I'm told you need strong legs to fly it.
More details
here.
Billredshoes on here is your man, use the Search to look for posts by him.