The only other you could try to do is look for a Cordoba/Magnum or Mirada. Decent ones 6-8k range depending.
And there is your answer, Ted. Some of them even have 400ci engines.
With all the good cruising/daily driver goodies except for the modern day safety features. Just obviously not the air bags and the collision crumple zones and such.
This
'76 Cordoba didn't sell on Bring A Trailer 2.5 years ago, but appears to be a very nice, non-winter daily driver.
This
'82 Mirada sold for $7,500 last November.
Which brings up another thing. Are you considering a four season daily driver?