I am totally lost as well, and our previous coach was a 2003 Alpine 38'.
First, I would suggest posting in the Alpine Coach section of irv2:
That is where many of us with a lot of first hand experience with Alpine coaches and the Peak chassis "hang out".
RIDE HEIGHT determines amount of air in the air bags. Have you verified ride height? If not and need instructions, tell us what year coach you have and we can provide that information. You have FOUR ride height valves.
What Koni shocks do you have. The new 99 series Konis have been widely acclaimed by those (including me) who have installed them.
What tire pressure are you carrying front and rear?
Pulling to one side could be caused by a number of different issues-- a brake caliper handing up, tires themselves, incorrect ride height, alignment (particularly caster), etc.
Start with the inexpensive basics first and give us more info on exactly what you have if you want assistance.