Like Terry, I upgraded the tires due to our grass field. Up to 3.5" now. The standard tires would be fine on pavement.

I only used the supplied hardware on the flap and steering linkage (I replaced the nosegear steering arm with a better dubro unit when I replaced the screws). I replaced everything else with Robart point hinges, 4-40 rods, and Dubro safety-lock clevises. Probably overkill... but I used strong servos and didn't want the pushrods to flex. If you use the standard 2-56 pushrods, be sure to use the little nyrod bits as sleeves like the manual suggests.