F & R steer for MOA??

[Krakker]

I'm looking to build the girl her first Bully rig here soon. Not that she's all big on competing, but she loves the unlimited rock crawlers (full size that is) and home brew buggies that run them.
I want to make her Bully a F/R steer system as well as F/R dig. I'm curious to know if the F/R steering functions AND F/R dig can be controled by a 3PK setup? I figure I'd power the BEC's strait into the servos and both servos would be tied together via a Punk rc dual servo computor.
There's plenty of 3way switch options on the 3PK, so am I right that this can be done??

NEXT ?, (you super guys might now this) what is the space like for the components, are you able to fit them in standard MOA chassis'???

Thanks, I'd really like to see this work for her. Should be really fun to mess with just for fun.