You are certainly welcome
It should work...all the CruiserRV's that I've owned/looked at/worked on used that self coiling blue hose with the male quick-connect and standard female hose fitting. I used mine for washing off the Lynx blocks, quick rinse of muddy shoes, etc.
Strange the RV shops didn't recognize or know what you were talking about. There are a couple of fittings (standard hose thread and the quick-connect are the two I've seen) and as soon as you said quick connect, they should
have known... One thing I've learned over the years; even though they may sell them or work on them, most of those folks don't know anything about them