Best option for you is to join the Buzzing club, which is devoted to this stuff and quite a good resource.
Or you could buy a boat and use them as anchors.
Thank you for at least not saying you would restore them " to their former glory" m'cos there wasn't any.
the one without an engine is an early Mobylette, , AV3 I think, there is Aplins in Bristol best source of spares for all things Mobylette.
Thoman is an obscure maker of cycle motors, obscure for a reason.