wow, I wouldn't be able to afford those prices where you are. I got my HD-700 for $587 from amazon and the HE-560 open box for $675 from ebay.
I would cross EL8 off your list at that price, to me its not even worth the $630 I paid, if you are still looking in a few months I might sell it to get the Ether if the reviews on the shipping version are good.
At the price difference of the HD-700 and HE-560 could you get a Project Ember? I got mine for $325 built and shipped to me in Hawaii and the bugle boy tube was $32.
Hope this helps