Considering the Apple Lisa and it's truly rare status and place in history I think the asking price is probably something that a true collector would be willing to pay... As for the $700 to ship the item, I think they seller should be 'nutted for trying that little bit of crap...
I really get tired of Ebay jerk-offs trying to rip people off with exorbitant shipping costs in the hopes that prospective buyers won't look at the shipping costs before they bid...
SCUM - BAG
Rare? The Lisa? Not at all. In fact, when the Mac took off they couldn't give those things away.
So...

Make a few modifications and re-badge it as the Mac XL.
This is NOT a collector's item.
If you think it is, can I interest you in an Apple III?
This turd (along with the a fore to mentioned Apple III and the Newton) prove that Apple can design some real duds.