Hello Arnold,
As you mentioned you've been playing around with ARM based platforms
(Raspberry Pi, Odroid, etc), check out the "Hal Digital" project:
https://sourceforge.net/projects/haldigital/
This older Rpi image (Raspbian Wheezy based for a Rpi2 ) has a graphical
TUI to take users through configuring the Linux AX.25 stack and bring up
the FBB BBS and the URO node. It has all of the foundation pieces for
an AMPR setup as well. I've been meaning to work on a new Rasbian
Jessie with an Rpi v3 image and merge it with my Rpi v2 hardening doc:
http://www.trinityos.com/HAM/CentosDigitalModes/RPi/rpi2-setup.txt but a
lack of time has been hurting that. You can try to take the HAL scripts
and run them on a Jessie image though and I bet it will work for 90%+ of
the items (the other 10% might be different due to SystemD specific
settings.
Give it a try and if you don't like it.. just wipe out the microSD card
and try something else.
--David
KI6ZHD