You don't have that thing back together and running yet? JK
I'm no expert on those things but am going to probably get a 1200 this week, will let you know if I get a manual with it.
To date I have not found manuals for the two Gentleman Janitors I bought last year, one has already sold and the other I am going to get refurbed and running in the summer. I just plan to wing it and learn by trial and error (plus talk to forum member who runs one
I would say you will be lucky to get a manual (our fearless leader may have one though since he runs a VW 1200), but that shouldn't stop you from getting it running.
Keep us posted on the project, thanks for supporting the cause of running a piece of history.