As far as tires are concerned it seems there's two schools of thought on the issue.
1) If travelling extensively buy a good tire such as the Sumitomo 718 (I see listed but not sure if they still sell 8R19.5), Bridgestone, Goodyear and Toyo make great tires.
2) If only used for short travel or limited times of the year then use Samson, Hercules or other Chinese branded tire as you will have to replaced them long before they wear out.
Number one rule with tires for our rigs is DOT number…….you want the number to be the newest production number you can get, as it's illegal to run tires older than 5 years in the US on motorhomes. We are 0314 right now- third week of production in the year 2014.
I also repainted my rims. I sandblasted, then coated twice with a two parted epoxy, very light sand, bought some Carquest pewter car rim paint then applied two coats of clear coat. They really turned out great. At this point no one is going to give you grief that you don't have the "Airstream" logo in the middle of them.
I did however find a great wheel simulator manufacturer that is USA made (at least I think they are US made). They make great simulators and valve extenders for airing up the inside dually.