scooter rental?

I need a 50cc machine for the practical in the lovely old seaside resort of Erith in a couple of weeks, and haven’t confirmed after 3 days. Any other recommendations? Or has anyone got a cheap machine for sale which will last another couple of months before going to scrap?

(There’s a good artistic reason for all this: I need to transport my barrel organ in a Piaggio from Spain to Hackney for a couple of weddings in September.)