I know Pica had one (cockpit kit) so you might find one around for it, check with Dynamic Balsa. Also Dave Platt at one time offered a T-28 in a similar size, so he may can offer something for you. All the ones I have every seen, except for the scratch built ones, were not full body cockpits, but I am sure an innovative modeler could remedy that. Do you have any pics of your new baby?
Tommy