In 2005 that was correct. There was no exemption from log books, etc. The "personal use pick-up" exemption was enacted around 2007 so that would no longer be an issue for you if your GVWR was over 4500kg. BTW, that $181 jumps to $235 this year. If your GVWR was 11000kg it jumps to $638!
The situation for those towing an RV is simpler than those of us with truck campers towing a cargo trailer. I didn't research RV trailers since it doesn't apply to me, but did notice a lot of exemptions for RV trailers in my reading. No yellow sticker is required and no class A license is required if a fiver RV is over 4600kg and you're still under your 11000kg class G vehicle limit.
However I don't remember seeing an RV exemption from including it in RGW - except the generic one when your trailer axles are 2600kg or less. You probably require a higher RGW and a yellow sticker on the truck. I don't know for sure. I just don't remember seeing such an exemption. If your chances of getting stopped are small then it might be cheaper to risk the fine - like many of us have unknowingly been doing.
...Fred
