Speaking from experience, it would be pretty difficult to bowl 60 hours a week consistently. As in you will have physical issues
I have been bowling in a tourney in Vegas for the past three years. The tournament is bowling 3 games a day for three straight days. I was shocked at how sore I am going into the third day as well as for a couple days after the tourney is over.
It would take some time to get co ditioned to bowl multiple hours a day.
I saw some say use a super light ball to save on wear and tear but that will make it harder to get strikes. You need the mass to help carry and improve strike consistency.
It's not as easy as some are thinking.....but I would still do the challenge of bowling