I don't think the WBO brochure implies that the alloy wheels and air bags are a package, just that they were both options. Mine has the air bags, factory installed, but steel wheels (I have the original paperwork). The wheel simulators were missing and the broker/dealer installed a new set of Real Wheels simulators before I picked up the motorhome. I promptly removed them when I got home and they haven't seen the light of day since. I prefer the bare wheels. I did install the plastic MB front hubcaps (wished they made some for the rear to cover the axle hub), and since the original spare tire cover was rotten and came apart when I removed it, I installed a Boomerang half hard shell/half soft spare tire cover for a G Wagen (same size tire) with the MB logo on it, and now have a MB grill also. Figure it will sell better when the time comes (soon) and it looks better than the original stuff.
Firestone actually marks the air bags as 100 psi max, 3Trv sets a lower limit and nothing over about 60 psi is needed anyhow.
Note to the OP, if the View doesn't have the wide angle mirrors installed on top of the big rear view mirrors, they are worth the work to install them.
Left side
https://www.ebay.com/itm/Dodge-Freightliner-Sprinter-2500-3500-2-7L-03-06-Driver-Left-Wide-Angle-Mir...Right side
https://www.ebay.com/itm/Dodge-Sprinter-2500-3500-Door-Mirror-Passenger-Right-GENUINE-901-810-11-93/...MB p/n for the LH is 66560397 and the Right side is 66560398
While doing this search for and find a RH aspherical mirror to replace the original flat glass
mopar # 5103760AA
https://www.ebay.com/itm/Dodge-CHRYSLER-OEM-Door-Rear-Side-View-Mirror-Glass-Right-5103760AA/2731074...Ouch! $106. I got lucky and found mine for $40 from someone who had the p/n right and the pic wrong, and didn't know what they had.
My comfort level driving this View increased dramatically when I installed the mirrors.
Charles
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.