Thanks for the responses. LJAZ, I'll probably pay the local Goodwell a visit just on the off chance that someone has donated a converter. That might be the cheapest way to go.
RWD lll, I assume your replacement was a "regular' digital 19 versus a special RV digital. I know what you mean about a POS TV. my X-189 was manufactured in March of '09, so I guess they didn't think it necessary to install a digital. they didn't even install a good analog. I have a couple of other nits to pick with Funfinder after my recent trip, so I'll just add that to the list.
2009 FF X-189 FDS
2011 Chevrolet Z-71 LTZ 4X4 p/u.
Reese WD hitch
Patient and understanding wife