Looks like a Downbeat kit with a Pioneer snare drum to me. If it's a Jazz Festival snare drum, then you can add a couple hundred to the value....(although I prefer the sound of a Pioneer!). Need some pics in this regard!
Don't buy new lugs to replace the vintage lugs! They are not exactly the same. They may fit the same holes, but the casting shape has changed a little. But it's never a problem to find the proper vintage lugs, T-rods and claws. You'll have to pay a little bit for some nice ones.
Nice, vibrant gold color to that one as far as I can see. Keep them out of the sun or they will fade to a dull beige.
Probably not calfskin heads during that era. Likely the original WeatherMaster heads, though. They can be saved and cleaned up. You can replace them with regular modern heads to play them, but don't get rid of those original heads!
I'd say a very good deal for a gold sparkle Downbeat with matching snare drum, etc.!