I have a pair of spaceliners - the mens is exactly this model without the deluxe add ons that came a bit later. It's likely one of the first ones ('64?) - I don't know the year but I was told mine were bought by a couple when they first came on the market.
Here are mine:
http://balloontirebicycle.com/Spaceliner B.html
and the ladies:
http://balloontirebicycle.com/Spaceliner G.html
...that bike looks correct right down to the seat and grips. It won't have a 2spd nor a light in the rack and it only has a light up front with one switch on the tank - no second button for a horn.
I want to upgrade my spaceliners in some ways because there are so many cool upgrades but I was told the couple who bought mine literally never used them and stored them in a garage making them really very perfect and orig and perhaps I shouldn't upgrade them.
I have the patent for these bikes if anyone wants. Another Schreckengost design.