Buying a 1984 Pace Arrow 34 foot GM chassis

IMHO, look for a newer one. Early 90's if you can. Won't be that much more expensive, and several improvements were made to both the coach and the chassis.

Thirty + year old coach...you’ll need to inspect everything.

front air bags inside the coil springs

approx $100 for a new pair, and a afternoon of sweating & SWEARING to install them

starters have a tendency to get over heated from the exhaust

and a lot of replacement starters are put in wrong and end up breaking teeth on the 'flex plate ring gear'

replacement starters come with shims for spacing the starter OFF the gear
and a little steel rod to use as the spacing gauge between the starter gear and the ring gear

If this is on a P30 Chassis This Link May interest you.

I had a 86 Winny on a P 30 chassis and it was the most evel thing to drive as I said in a post in that thread.