I would think that you could upgrade to an external power amplifier and satisfy the requirements. You only need two channels of clean power to handle them. I have used non-ML surrounds with my ML L/C/R and it worked fine. I mostly have ML surrounds now because I got a tremendous bargin on them (here at the 'Gon). I'd say that the most you'd really need to spend is a 2-channel amp and a ML Cinema center channel.
Not sure what your budget is, but I picked up a Counterpoint SA-220 (almost 400wpc @ 4 ohms, more than enough to run my larger Odysseys) for under $800. I picked up a newer Classe CA200 (also 400wpc @ 4 ohms) for around $1000. I'm not suggesting that you go buy either of these pieces, necessarily - but I know that they handle my speakers and one presumes they'll handle the Aeons at least as well. (and you can probably spend less.)
Not sure what your budget is, but I picked up a Counterpoint SA-220 (almost 400wpc @ 4 ohms, more than enough to run my larger Odysseys) for under $800. I picked up a newer Classe CA200 (also 400wpc @ 4 ohms) for around $1000. I'm not suggesting that you go buy either of these pieces, necessarily - but I know that they handle my speakers and one presumes they'll handle the Aeons at least as well. (and you can probably spend less.)