I'm going to attempt to parse the html and make a live forum out of it.
There will still be some problems, first of all people will need to claim their accounts, I do not have email addresses so there needs to be some kind of process defined on how to do this. Hopefully an automated process.
As for hosting It, I was thinking that some kind of foundation or club can be formed to keep it going, that way it won't be in the hands of one person and if they lose interest, get hit by a car etc, it won't disappear.
If I manage to achieve an import, the forum size should become a lot smaller, and more manageable.
Some other updates:
1) I am doing another backup of the site this time with attachments, I managed have wget login before doing the backup, so this time the attachments should come down, it will probably take a couple of days to complete.
2) I have backed up the knowledge base
3) I have done a complete backup of the ftp site, (previously I had only retrieved the manuals).