With regards to buying a print of the Great Wave from David Bulls work shop (which I'd personally consider as original as any other print), I got this e-mail from the Mokuhan team back in January:
> The printing is going very slowly - we limit each run to a maximum of 60 sheets, in order not to overly wear out the key block. And we cannot turn our top printers (the ones working on this project) into 'Zombie Great Wave Printing Machines'. They take turns working on this one, mixed in with plenty of work on subscription prints and other designs, so we end up with a new batch of prints every 7~8 weeks or so.
> [...] At present this email address is in position [ 2,017 ] from the top of the list
> The printing is going very slowly - we limit each run to a maximum of 60 sheets, in order not to overly wear out the key block. And we cannot turn our top printers (the ones working on this project) into 'Zombie Great Wave Printing Machines'. They take turns working on this one, mixed in with plenty of work on subscription prints and other designs, so we end up with a new batch of prints every 7~8 weeks or so.
> [...] At present this email address is in position [ 2,017 ] from the top of the list
I signed up, gosh, feels like years ago.