For 1)Radar: According to the "misc." section of the www.finest-kind.net website, Radar became a St. Louis police officer in the pilot for "W*A*L*T*E*R," a series that never went beyond the pilot. If that hadn't happened, Radar could,ve gone to college under the G.I. Bill and become a vetrinarian -- Dr. Walter O'Reilly, D.V.M -- or a businessman of some sort.
2: Klinger. Ther are possibilities, but he probably could've become a successful clothing store owner, mostly likely selling dresses and other women's apparel.
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the Clampetts are in a fancy Beverly Hills jewelry store. Granny points to a tray of rubies.
Granny: "How much fer one o' them red diamonds?"
clerk: "Madam, those are rubies."
Granny: "OK ask her kin we buy one offa her."
clerk: " The ruby I am talking about is not a lady."
Granny: "Lissen, how she got them diamonds is her business. I'm just sayin' ask her kin we buy one from her."