Mike Willegal posted via his blog that the Mimeo Apple 1 replica kit will soon be available again. Some changes in how the kits are obtained are in the works though. Instead of providing everything Mike will sell the Mimeo mainboard, but the components will be available as a pre-picked kit package from Unicorn Electronics. You can get all the details here.
Or, you could go this route. ¡Ay, caramba!