I would get the 702/722 and be DONE with it. If you come across some money, you could always add a v2 into the mix. If I were running Gefell's, Id be running MG>7xx or MG>V2/3>7xx
As always, YMMV
And dont be scared of teh folks who dont like the 7xx's preamps
They most likely ahve never ran a 7xx unit and dont personally know for themselves
The preamps in the 722 are my DEFINITE FAVORITE for the 480's and they aint too shabby for the MBHO's either
I know this doesnt really help your question, but I have ran 480>DMIC-20/Sonosax/V2/V3 and have heard just about every 480>pre/adc combo there humanly is possible and I MUCH prefer the 480>722 sound. The preamps are top-notch and sound PHENOM with a neutral mic IMO. I would bet you would be one happy tapir with the MG>722 sound
If you arent, sell the MG's and get 480's and you'll be happy then
I only ran MG200>722 for one set and MG210>722 for one set at moedown 2006(Thanks Jason!) but love the combo FWIW. In fact, I plan on having MG 200/210's in my mic arsenal within a year or so hopefully and guess what I'll be running them into? Thats right, a 722, that is until I can find/afford another V2