"professionally restored" just means someone did the work for money - like a body shop or an upholstry shop which maybe has some, none, or a lot of experience with actual vintage restoration, so regardless of the quality of workmanship, historic accuracy is a seperate question ... if you search you can find believeable examples of good unrestored vehicles to gauge "originality" by - like
this low mileage example which shows some deluxe features, including the deluxe seat - there are likely other TF trucks in the ga11ery that are "correct"
the tri5 cars are a category unto themselves in todays world, iconic, and as cars they came with a lot of variations ... for trucks there really was only 2 seat choices, standard or deluxe, and I doubt many work truck buyers wanted to spend the money on the fancy bits, so suppliers mostly deal in the standard items, unless it's some flashy chrome that present day owners prefer ... I believe there is a supplier for the seat material that's been discussed here, including that deluxe pattern
Bill