Is there anything special to look out for when inspecting a 1970 Dart Swinger?

rust bad body work even if it need a trans think you could have it rebuilt for under 2k
get a paint meter to see how thick the paint is
check inner rear quarters for repairs ,rockers ,floors
check rad support for repairs , and then compression test ,how does it start cold,how dose it run hot ,........
Completely agree, especially.. get a good paint meter and a good set of eyes.