No.
He had money from real estate, etc.... but that wouldn't of helped. GH back in those days wasn't like letting a few bottles(or even a few 100) of Primobolan slip.
You don't see legitimate or semi- legitimate GH use discussed in Olympic drug protocols, etc...... in the 60's-70's, which were far more important most people and nations than a 70's bodybuilding hero. You also do not see GH use in monied power sports like Football, etc...... till much later.