New electronics for the Trex 550?

I'm considering changing the electronics setup in my 550, when I rebuild it.  Currently it has a Castle Talon 90 and MSH Brain FC. I plan to move the Brain to the Trex 250 I just got, and put a Vbar  Neo with Rescue in the 550.  To use the Neo governor I'd replace the Talon 90 with an Edge 100, as I would need the RPM signal wire. This is the same ESC in my Goblin 380, but the Lite version without the heatsink case.  In the 550, I'd use the version with the heatsink. But, the BEC in the Edge can only support 5A, so I would need an external BEC to run the 4 full size power hungry servos in the 550.  Meaning I'd need to add a BEC Pro.  Hmmm. 

But I'd be able to use the Neo governor, which I'm liking in the 380. A bonus is now having data logging, as this feature is missing from the Talon line of ESC's. 

What to do? Lol!