What we have now is:
1 dead KX145 (trashed)
1 ICSplus Nav/Com
1 Panel CDI for the 145.

The ICSplus is a feature rich radio designed by an dyslexic idiot on acid who has never been in aircraft. It has a display integrated CDI and GS as well as a mediocre intercom. It works fine. But the controls are incredibly stupid and it is invisible at night. We'd either keep it as Nav/Com 2, or sell it on eBay for about $5 OBO.

We have RST-504 audio panel in a box. Untested, might work, might not.

So we would need a radio with integrated intercom, or we'd need to hope the audio panel works.