Something has to give. The 5er toyhauler sacrifices an awful lot of space just to carry the toys. The class A means a trailer for the bikes & when the weather is bad & you need a store run you a stuck. Riding Harleys you are very limited on what can be carried even if the weather is good.
Do you want the Harleys because they are Harleys or do you want to ride for the sake of riding? If simple riding is the purpose maybe a bike with a bit more versatility would be better. Something that can carry 2 & carry a few bags of grocerys or what is needed for a days outing as well.