Repair guides/workshop manuals

Hi,

can anyone tell me how many volumes the original guide has? The guide on CD/scanned is unfortunately not complete and a bit a patchwork between 88 and 91, as far as I remember.

And how many "expenditures" were there in the end? So one for 88, one for 91 (with ABH), one for 90 (with hand switch), one for overseas (right-hand handlebar), one or more in English - also in other languages? Anybody know anything?

And what can be done about the guides (completely)? Despite the digital version, which is circulating, they are being traded quite high.

Are there any guidance from Audi and if so, what is required?

Thank you and IG

Bastian

PS.: If someone has all the original guides, it would certainly be great, provided that