I think you can still get the buy EZD1 and upgrade to EZD2 here
http://audiodeluxe.com/products/toon...eid=c0c5c67474
I got this deal, and yes, you get the original Pop-rock & cocktail kits from EZD1 and the new modern and vintage kits from EZD2.
I think the EZD2 vintage kit would do Zep sounds but you would need to process them accordingly, there might be a preset but i havent checked out the presets much.
EDIT: I see there is a Levee preset so that should get you started.
Cheers