Yeah, Kenwood learned from the mess that Motorola made of the SmartNet/SmartZone trunked systems. I used to have one of those before the NexEdge system and due to a radio shop being allowed to program radio to our system, we had a ton of radios running the same radio ID and we essentially lost control of the system.
Would be nice if there were some scanners out there that were less expensive than the current crop that would do this for you.
Not sure if the Icom radios will do what you need. My system is 800MHz, and Icom doesn't make any iDAS/NXDN capable 800MHz gear for me to try out. I've heard rumors that it's possible, but in 10 years, I've never had anyone actually prove it. Would be interesting to try out, but by the time you bought the Icom radio and programming software/cable, you'd probably spend as much as buying a scanner.