Stop in for a cup of coffee

Found an overland rack on FBM I'm going to check out. I want to mount a cargo hard-box on it. The dog occupies the entire back seat so extra baggage is a challenge. She strokes out if put anything on the back seat as it obstructs window snout access...
Old school rack I thought I had a picture but I don't, twinn rubber suction cups on four corners that does fit my 66 .. just incase I take a road trip to that big swap meet all you guys and galls go to called Carlisle.