I would buy a Piper 6XT an AN-2 or 3 and two Twin otter's One with water ski's and one with without.
My 6XT is for nice comfy bimbles with not to much weight.
My AN2 or 3 because I can
My Twin Otter with water ski'....well so i can land on water at various tropical islands (obviously a few stops on the way)
My other Twin Otter for the longer trips and heavier weights and the decent short strip perfromance.
I would also buy Andreas airfield on the isle of man and get that up and running again with nice new runway surfaces and some hanagars and a huge BBQ.