69 273 headlights wont turn on

Well that's not a bad starting point. The initial learning curve may feel a bit steep. Whether you're willing to take it on and stick with it, no way for us to tell on this side of the screen.
Here's what I like about what I see, and think its a decent starting point.
The body is relatively 'straight' except for a couple big dents, and the rust looks to be moslty surface rust.
The engine bay looks relatively complete, clean, and mostly original.
(These days, original parts are often better quality than new replacement parts.)

Not sure why a 273 would be in a '69 Dart, but that's not too important right now. The body tag on the inner fender will indicate what the car original came with.