Original 70's metal flake, cocktail-style diamond tuck and shag carpet. Check. 
You have a great budget for an older, great condition boat.
The only problem you may have in finding one is, most have been re-done or are in rough shape.
Not to say that you won't find one.
Maybe, keep an open mind to one that has good gel but may need some interior or mechanical work.
I think that is very possible with your budget.
Good luck.
Troller Dave,
Thanks for the support.
I do think you are right. It's a bit like catching smoke.
Your advice on prioritizing makes sense. Drove up to Mariposa to see the first boat on my list, a 76 Miller Ski Jet, I think mentioned on the forum a few weeks back, had a killer hull & gelcoat, minor fixable blemishes, original interior no cracks or rips. Needed mechanical work, probably at least a engine overhaul, for sure a valve job, & some pump work. My budget was about 1/2 of what it is now , & didn't think I would have the 4 or 5k to get the boat reliable. I passed & am kicking myself (literally, and you know how hard that is to do) ever since.
Also, hesitated on a Hondo Pantera t-deck I saw in Parker. First guy on the scene. Beautiful, well taken care of, almost original boat, a bit over my budget at the time. Got back the owner a week later & it was already snatched up.
For sure, finding a real nice classic is an adventure....
G
