I got an MX-1200 a week ago and have been very happy so far. After having an MX-3000 for a decade it's a pretty big change.

I also have a discontinued base station (MRF-300) which I'm still able to use without changing anything. I just added an MRF-350 in CCP and renamed it to MRF-300. You can probably do the same by adding an MRF-260 and renaming that, if you like. Neither the MRF-300, nor the MRF-250, show as available base stations in CCP.