First of all, many thanks for this update.
Yes, I'm open to do that. Just let me know what exactly is needed.
I'm not sure what should be delivered. Is it expected that I should create
additional fonts in gimp (for those special czech characters) that would be
added to character set of iso-8859-1?
If yes, what should be the picture file extension?
Is it enough to create only letters with special character or should I create
complete set of fonts?
My apologizes for these questions but I do not have knowledge about fonts. But I
will google some info to learn it ;-)