[Milsurplus] arc-27 connector for an arc-2?

[W2HX]

Hi all, I have an ARC-2. I know that I shouldn't hold out any hope to find the mounting base with the electrical connector.  I saw something on ebay (for an arc-27) connector and was wondering if anyone knows if this might fit. Sounds like a longshot, for sure... but it kinda looks possible. It can be seen on this ebay item...

260969715972

Thanks all
Eugene