Solely for purposes of gentlemanly, professional discussion, here's an ad that sorta/kinda fits the OP's question. It appears at least some airline is having similar thoughts. Understanding that the operation itself can be a handful, would there really be all that much difference between a guy transitioning from the E190 to an A320 and one coming from the CRJ900 ?
“For E190 and MD 80 Captains, please contact us for more details on this role.“
E190/ MD 80 to A320 PIC- New Position-Latest Pilot Jobs-Latest Pilot Jobs
And to the OP, somewhere on here is a link to a FREE e-book titled, "Flying Upside Down". It was written by an expat at a Chinese airline and details his experiences. If nothing else, it's a fun read...and the price is right !! ;-)))
It won't do the OP any good but for purposes of discussion, here's a similar proposition from Europe :
http://www.latestpilotjobs.com/jobs/view/id/9174.html