Mitch,
How are you good to 10K? I can see the 8K, just as my sons trucks are, ie similar chassis's but a GM and Toyota. As they have to buy an 8K plate too. I've always under stood I get what I pay for, not the extra you are claiming..........
I can see a potential for the 2K, in that an actual wt and measures leo ie a cveo will give you up to a ton over before ticketing you. You will also get a 10 day up your plate amount too. Been there done that in my mdt........
Reality is, you can get to about 20K without going over the actual state law. again as you say, I would not recommend one go this high of actual gvw.....
Marty