try ebay or craigslist for your best bet in search of these accessories.
I wasn't keen on the chrome bar steps either, but after researching it and getting feedback from service advisors (@ Hummer dealer), I decided to keep the chrome bar steps vs. purchasing the black metal U-steps.
Congrats on the purchase.
I know exactly how you're feeling ...w/the anxiety of not knowing 100% of your purchase.
Did you get a CarFax report?
what about an independant inspection from a 3rd party?
I did both before purchasing the truck unseen...(other than a few pics)
Anyways, I'm sure the enclosed transport is going to be a tight fit....given the size of the H2.
My brother's brand new X5 came via FedEx Passport (enclosed trailer back in May ) and the driver had a hard time getting it in and out. Definitely inspect the truck when you meet the driver to ensure nothing got scratched or dinged.
The little things in the sale up to the point where you get the truck will definitely keep you up at night.
I'm sure things will work out nicely.
Cheers.
Don