I forgot about this thread.
A little update as we have purchased a new to us rig - 2008 Dutch Star 4023.
Did our list help us decide. Yes. Does our new mh have everything on our list - no.
When looking used, there are going to be trade offs. Yes you could get really lucky and find that perfect rig. But I'm willing to bet that won't happen. Too many variables.
We got most everything we "wanted". Got some things that we didn't have as a high priority and glad we did. Got some things we didn't really want too. Overall. we are very happy.
I think to be succesful with a list, you need to target a "brand". Once you have your list for that "brand", you just need to wait for one to appear on the market. Making the "brand" choice may be the most difficult part.