Pictures? Zetr0 will love you forever
I use 3.1 on mine with 3.9... I think it's worth having 3.1. Unfortunately, you will need to remove the WarpEngine to get to the ROMs.
I know exactly what you mean about the amiga being a very personal thing: the system was great because a human being could understand the purpose of every file on that disk, every line in the startup-sequence, every line in user-startup, and tailor everything to your preferences.