Mmmm, so basically the 5D Mark II would only be good to cut from say A7s-A-Cam closeups to 5D Mark II wide angle shots?
If you're looking to be as wireless as possible I'd also add the SKP300 G3 plug-on transmitter to your kit. Definitely an amazing thing to have for your phantom powered mics. http://www.bhphotovideo.com/c/product/858052-REG/Sennheiser_SKP_300_G3_A...
Not the MKII, the original model. I'm in Toronto and've seen it listed for between $390 - $450 over the last year. Trew has had one up for $450 on its consignment page for months now. http://www.trewaudio.com/consignment/recorders/
You can totally contact them and barter. They'll just call the seller and see if he's interested. Either way, even at $600 and under, I don't know of any other portable recorders that can beat it, all round; yet it rarely, if ever, gets mentioned. I'm just glad I really did my research back when I got mine (paid $500 I think), or else, based on the brands that do get mentioned on these prosumer portable recorder threads, I wouldn'tve even known it existed.
The Marantz PMD661 is arguably the best professional grade recorder/pre-amp you can get for under $400. It's weird how this unit has been so overlooked the last 5 years or so.