Thanks, man! The foam board I bought was already scored at 8" or so, which was about exactly what I needed. Table saw makes clean up easy! I have used a razor blade to score smaller pieces.
Just installed a second tap and added some insulation.
Collar made of pine, tap handles 3d printed.
Part 2
https://youtu.be/MVIX_jK-YAU
Initial build of collar and first keg:
https://youtu.be/lwxE6zSCdQk