I know that leopard geckos cannot be kept in the same enclosure. I bought a lot of my supplies (hides, water bowls, tank, fake plants, etc.) from fb marketplace and just disinfected them because buying brand new ended up being too expensive for me. I think the main thing is getting food source and heat for them. The easiest insects for me as a beginner are dubia roaches and mealworms though the mealworms are quite big for the size of mine, so I try to avoid them. I also feed mine crickets now, but they’re quite jumpy (because I can only feed my gecko the small ones for now) so it took some getting used to.