That's quite a feat of marketing, getting you to buy something expensive from so far away without a close up inspection. The seller's description of "commercial" is probably referring to the optional 4-speed transmission, which was an upgrade from the commonly used 3 speed column shift installed in lighter-duty trucks. It might also have heavier springs, but that's a lot more difficult to determine.
The "part-time" job as a mechanical inspector that I've had for the past 9 years includes doing pre-purchase inspections of classic and collectible vehicles for potential buyers from all over the world. It's a little late to close that gate now- - - -the hor$e is already out of the barn in your case, but for a few hundred dollars it would have been possible to have a professional inspector do an on-site evaluation and test drive of the vehicle before committing to the sale. Last week, I inspected a 69 Jaguar coupe for a potential buyer from Australia who has had me inspect 20-something vehicles in the past. I gave it a resounding NO! The car looks good on the outside, but under the new paint job it's a piece of rolling junk. Good luck, and I sincerely hope your truck is all it appears to be.
Jerry
