Hopefully the medical equipment on the ship would be up to mid 21st century standards. That way the crew would still be middle aged, and with a lot of stories to tell. Draft Explorer Class Cargo Manifest Vac craft. Say big enough to carry a one or two of 18 wheelers. Can land and take off from a full G moon.
Ships are modular so they can be taken apart and rebuilt as heavy tugs or whatever.
This would also allow them to be stored more compactly in the ship. Drive systems would be Busard fusion reactors heating water as reaction mass. Side view would be more diamond shaped. This way it can carry more and has unlimited range in atmosphere. These do the light shuttling around and supply runs to the ground exploration teams.