You asked for feedback - someone could piece this together themselves for the price you're asking, give or take. Shipping will be expensive - these are heavy units with tires on.
Rims are worth around $50 each
Tires are likely $50-$75 each - not sure what they are
Powder coating would run around $200 tops.
So for around $400 I could do this myself and not pay shipping.
And if someone was doing this themselves, they'd likely start with rims that weren't as pitted as yours, they may choose different tires that are of known age, and they'd get to choose the color.
Have a look at some sample shipping costs - maybe I'm wrong and you can include this in your post - example shipping from your location to LA, Chicago, Atlanta, Cincinnati... some samples from around the country unless there's a flat rate price for the whole US.