They all are Mego Buck Rogers figures except for The Black Hole's Dr. Rhinehardt on the far right. The second from the left seems to be Buck himself,only painted custom colors.Alas,I can't help you with the ship(probably what your most interested in)but I hope someone can answer.Perhaps it is in fact an Eagle One, just customized for the shoot.
The ship is the Airfix kit of the Hawk spacecraft from Space:1999.
Cheers guys! That's everything ID'd. It was a shrewd move by Dekker to mention Star Wars on the box and market the toy as suitable for use with Kenner figures and other action figs. Presumably they didn't have a licence for Star Wars toys so this must have seemed like a way of getting in on the action!
Ive got that set, they arent too bad, just really flimsy