Well Sir,
You still haven't described what year/make/model/engine of coach you have. On gas coaches, the suspension and front end components most of the time are not quite as expensive to align as the diesel versions. As far as balancing is concerned, as you'll find out, there's different forms of balancing for automotive tires.
I've used the manual style, (attaching weights to the rims) for decades and, it's always worked well for me. But, others will differ and use balancing beads, powders, and more that are introduced to the inside of the tire. It's been suggested that you get four wheel alignment. Well, that's fine if, IF, the rear is adjustable.
On many gas coaches, as in the F-53 chassis, the rear is set from the factory (usually leaf springs) and that's it, there's no adjustment. I could be wrong on this but, I had no rear adjustment on my previous coach, a '99 Fleetwood Bounder 34V with the F-53 and V-10. But, on diesel units, depending on the chassis maker, there are adjustment rods that can be turned and, that will allow for the rear differential to be pointed in the right direction.
Scott