Do you still have older saves? If you load the oldest save you have after first meeting Zandalor and learning about the teleporter pads, will Goemoe give you the scroll then?
If you load your latest save, trade with Goemoe and give him a bunch of stuff, does that make a difference? Just give him all your gold, and maybe high value items to get his opinion up; if that helps you can reload and use trial and error to figure out the minimum amount needed to boost his opinion enough to give you the scroll.
