Thetruck454 wrote:
Can anyone see any flaws or wrong assumptions in my approach or have any other suggestions?
As others have stated, it is highly likely that payload will be your limiting factor. Some say use a trailer's GVWR, others don't (myself included). Some say 12% tongue weight, others say 15%. Only you can decide how conservative you want to be. But...
-Be honest with yourself about what you will really in the car.
-Get as close as possible to real numbers (if you can't scale, at lease make sure your starting payload number is the one listed on the yellow sticker on the door jamb).
-Think through EVERYTHING you need to put in that car and make sure you account for it in your payload.
As stated above, I think the resulting number is likely to be far less than what is allowed in your towing capacity (most likely in the 5-6k range at most).