I was thinking of putting it with a management company, but then just about every owner and pilot I have spoken to said they run the plane with "a guy".
NO, NO, NO that is the wrong order.... ONLY go for "a guy" if you are experienced (which you are not) and you have dealt with the guy in either that management environment OR he looks after 3 or 4 of your mates their aircraft and they are all very happy about him....
My 10 cents: Love your enthusiasm but you still are not a step further... Go to a management/charter operator near you and charter the cr@p out of them for at least a yearand see if they are as good as you hoped. Invest a year in understanding different aircraft and real cost.. Then consider buying your own and especially an old maintenance burning aircraft like a G3
