[Koha] Questions

[John Andrewartha]

Thanks for your time and patience.
The group I represent will be embarking on a major book project this 
year.   Our target group is intellectually challenged people.  We aim to 
produce ebooks with audio.
The library software needs the following;
Graphical interface
Ability to have thumb nails
Soundex as well as Lexical matching for search
Be able to handle a soft library.
Handle Radius authentication

Is Koha able to meet these requirements?

Regards John