Looks like I will have to upgrade my scanners soon, I also provide the feeds it will be costly to upgrade to keep providing the feeds.
All the fire unit in Clark County would have to upgrade to keep working together, unless the are linked to non digital TGs.
While having actual physical scanners capable of doing the digital decoding would indeed be a very costly expense not to mention a "waste" of such hardware since it would be dedicated to that purpose and not able to be used for anything else, perhaps you might consider a solution based on SDR using some of those "cheap USB TV tuners" which are more than up to the task with free software like DSD+ which is capable of the necessary P25 Phase I decoding that S.N.A.C.C. will be migrating to (already in progress at this time anyway) - only the LVMPD is/has gone P25 Phase II albeit in a few years S.N.A.C.C. and related users of that system might bump to Phase II. By that time I'm sure DSD+ will more than likely handle that as well, but currently it's just P25 Phase I capable and it does it quite well indeed.
P25 Phase II decoding is capable under Linux but it's a whole different ballgame with that so I won't get that involved in it in this thread - P25 Phase I is what S.N.A.C.C. and related users have on the board so that's what the focus should be for a few years.
For the cost of a cheap used PC of some kind or laptop, a few RTL sticks (like $10-30 each, the recommendation is to get a newer R820T2 tuner based model for a variety of reasons), free virtual audio cable software (that might not even be necessary depending on how you configure things) to route the signal from the SDR application to the DSD+ application, and a cable or two for each RTL stick for an antenna (some of them come with half-respectable telescopic whips that could be more than adequate depending), and some time and patience you could convert the entire system over to something that works just as well if not better than what you have now.
You could do all of this for $100-200 tops, if even that much needs to be spent. You might already have a PC that you could dedicate for this purpose, and other things as well since using this kind of setup with DSD+ for the digital decoding is barely anything on a modern PC. I can decode P25 Phase I, DMR, NXDN, etc, in real time and it's like 2-5% max on my i5 laptop, basically nothing at all in terms of resources.
And as a bonus: it would free up those physical scanners you're already dedicating to that purpose too so you can use them for something else, perhaps.
This is all based on the assumption that you're not doing SDR to some degree already, like using a physical scanner with a discriminator tap to get the baseband signal to DSD+ and so on.
It's where things are headed in the future so, it could be a nice project to convert the source of the audio feeds over in this manner.
Just a suggestion...