oven or cooker (Bexleyheath DA7)

Our special needs community centre is looking for a oven/cooker to develop a home skills classroom please? It would need to be fully electric, would prefer one that plugs into a normal socket if possible (But this isn't essensial) Either free-standing or built in type, with or without a hob. Happy to fix any minor faults like elements etc. Much appreciated! "All Directions" is a center based in Dartford that caters for adults with all kinds of needs.