there are only two styles of 10-lug bigrig rims:
rims that are centered by the lug nuts (conical seat on the nuts) or hub pilots (flat "washer" lug nuts; the rim is centered on the hub by the big center hole)
to polish aluminum check with your local fire department; they are experts
just kidding; a Firefighter friend told me that nothing beats a product called "Whatashine" (sp?) . he told me he will bring me a bottle for our Pete.....(im still waiting
IMHO your rig has too much white; how about sticking thin sheat of Stainless onto the storage covers (a friend with a CNC laser or waterjet cutter would make that realy easy)
you could cut them to size and stick them on with 3M UHB two sided tape.
if you know somebody with a brake/bender (i have a "soft radius" brake/bender for ATP but i guess im too far away)i would bend up a ATP plate that covers the steps/tank with a cutout for the gas cap.
i would also add a SS cab visor (here in AZ with a bright clear sky and lots of sun its a "must have" anyway)
some more lights (not too much to look gaudy
) nice LEDs side markers and some LED step lights
...just some ideas