Wondering if anyone has a recommendation for a rear passenger step stool/ladder. Want something stable so nobody falls into a wing strut. Thought about getting a paint platform, but I am not sure how well that would fit in the baggage. The stirrup in the back works fine if the passenger is small and relatively limber, but for older, less limber folks it is difficult. Already have a folding front seat and removable rear stick, which should be helpful.