These are great examples. I don't put some on my site because I can't verify the accuracy. See below.
NADA does not list a 34' Land Yacht. This probably is a 34' Legacy. My hunch is every MH made is a Land Yacht something...
Ad says 34' LY but NADA does not list a 34' for that year.
NADA does not have any 30' models for that year.
I have the NADA model list and I'm trying to find good examples of each model listed. These may exists since the factories build and date them as they wish. Kinda like buying a 2003 car in August of 2002! I'm also going to work on a Airstream-Thor conversion table when I have tons of time!
Hopefully this discussion will bring in more of the later model MH's which we seem to lack.