I may be too late for this one, but type can be coverted to outlines/curves in Quark (MAC version 5).
>Highlight the type with the type tool.
>Select STYLE from the menu bar
>Select TEXT TO BOX from the pull down menu
A vector image of the type will be duplicated and offset below the original line of text.
A vector image of the type will be duplicated and offset below the original line of text.
The converted type will need to be moved back to the original position of the layout and filled with the appropriate color.
Also, the original type will need to be deleted.
The file can then be saved out of Quark for illustration sofware in two ways:
> FILE > SAVE PAGE AS EPS
or
> FILE > EXPORT > DOCUMENT AS PDF...
It's just that easy...
...however, I'm guessing that you will hear a bit of a rant from your customer about what a PITA it is to do it that way. It does get a little frustrating to work through the process --- if the type exists on two or more lines, each line will need to be converted separately --- it's a Quark thing.
aaannnnd, you'll still need to work through all of the idiosyncrasies of what Quark does to a file, but at least you'll have the pieces.
Admittedly, I don't know all that much about Quark. I use(d) it every once in awhile for certain types of layouts. It's great for what it does... but signs ain't it.
Good Luck.