Your best bang for the buck solution is going to be a DIY solid state amp, like a Dynalo. If you have the soldering skills, there's a lot of resources on the DIY forum.
Alternatively, you can buy a prebuilt Dynalo on eBay, or from Acoustic Fun (Link: http://www.acoustic-fun.com/catalog/product_info.php?products_id=62), but that's a bit over your spending limit. The Gilmore Lite, which has been discontinued by HeadAmp, pops up on the Amplification For Sale forums from time to time, but is also a little above your $200 limit (http://www.head-fi.org/forum/thread/553619/gilmore-lite-reduced-price).
The above solutions, however, are amp only.
I'd send the guys at Audio-gd an e-mail and see what the turnaround time will be. I'm not sure if they've dealt with their supply problem, but if they have, you might be in luck.
Although, I'm wondering why you don't just hang onto your E7/E9 and just buy the uDac-2.
Edited by sridhar3 - 5/17/11 at 7:25pm