TOS-r: Space Seed
Presumably they retrieved the Botany Bay before dumping Khan and party on Ceti Alpha V, since in TWOK we see living quarters in converted cargo containers or something filled with personal belongings. There might have been seed samples aboard for crops, if they hadn't spoiled after 300 years. Wondering how long a supply of colored food cubes and other materials Kirk left them with to get started. Weapons would seem to have been necessary for survival too, even if it's just flintlocks.
Yeah, what were they all eating and drinking after their Starfleet MREs ran out and the planet turned into one big never-ending sandstorm?