Recommendations for replacing old Vista system

@jwcsurety – After much research, I’m back with a followup question:

My current tentative plan is to replace the old Vista 4140XMP panel with a Vista 20P, and the 4208s with two 4219 zone expanders. As I understand it, this should allow me to retain all of my existing hardwired door and window sensors.

I’m also planning to add:

  • One 6160 keypad
  • One 6160RF keypad, for integration of new wireless sensors
  • Six 5853 wireless glass breaks
  • Three 5800COMBO wireless smoke/CO detectors, to replace my out-of-date polling loop devices
  • One ADC-SEM300-VT-VZ to enable dual-path monitoring through Surety

Does this make sense? Am I missing anything?