Thanks for the kind words hands!

rops:
1A. You will polish according to your test spot revelation.
2A. Varies according to manufacturer and age. And can be a combination of two or more depending on whether the truck has been fleet maintained.
EX. The aero-shield on some tractors are fiberglass and have been damaged and replaced.They also can be gel coat or painted. While the tractor itself may be either bc/cc or ss.
The biggest hurdle? Equipment such as ladders, scaffolding, forklift etc...
Day cabs are the easiest and can be done by ladder only.

Depending on whether they have the top aeroshield or not.
Truck models that are
CLASSIC, such as W900, 359,379, 389, Fld 120 Classic - can be spider- monkey'ed according to body weight and no platform needed, just a ladder.
The issue arises when you get to trucks like the Volvo 660, Freightliner Cascadia, Coronado, Century, and other aerdynamic class 8 vehicles. You will most definitely need a platform to detail off of.
There is not a lot of money to be made off class 8 vehicles that are work trucks. Most drivers just want them clean and shiny and no BS. And company reimbursement is limited to a preset #, with the driver absorbing the rest.
When it comes to the bright work, if owner specifies a degree of bling, make sure that you can accomplish this with tools and products at hand. Most parking lot shiners charge $15 per wheel and $30 per tank and can readily be found all over a class 8 travel lanes.
Use the search feature, keyword Peterbuilt and find threads pertaining to class 8 detailing. I believe forum member LuxuryMobile and Advanced (South Florida) have show and shines of Peterbilt 379, and Freightliner Century Class, respectfully.
You will notice in the thread that Advanced used a forklift and platform.
Pics of vehicle would be helpful in determining paint.