Ken -
Yours is not a new question for us Harley riders. Nearly 60 years ago this bowhunter not only had a problem of carrying his bow and arrows, but also his bear......
I, on the other hand, use a TD Hill in a 3" pvc and bungee it to the rear luggage rack of my Road King Classic. Before I got the TD Hill, I used a pvc and bungeed it to the right front highway peg on the engine guard and to tour pack at the back. I also use a 4" pvc to carry my arrows.
Also, since "The Enthusiast" is published by Harley Davidson, you will be getting your copy direct from The Motor Company. Welcome to the family.......