[Overdriven]

The 5T body has a longer wheelbase than the Rampage. The Proline 5b/5t "conversion" body might work though as it has a slightly shorter wheelbase.

I'd go with the S5301 if you're sticking with futaba. FYI the Hitec I purchased for my FG came with a heavy duty aluminum servo arm, not sure if they all do or not. As far as digital goes, it depends on your radio. Some radios can't use analog servos because of the module in them. Thats all I know, maybe someone else can shed more light on this subject.

As far as programming servos, unless its a track vehicle and your that picky or some highly specialized application (robotics come to mind) its not something most would mess with. Most high end radios have enough adjustments (epa, subtrim, etc) to not need the feature.