I'm with lbrjet. There's no reason to jump the gun and start throwing money if you don't have to.
Get the trailer you want. See how it tows. It's not going to be so bad as to leave you stranded in the middle of a hill unable to go up or down unless you have some REALLY steep hills. Make adjustments *IF* necessary.
As I said earlier you *MIGHT* not like the performance, but you will never know unless you try.
Not having the power to roar up mountain passes at 70MPH left you in "a dangerous situation," really? How was it dangerous? For one thing you could have feathered the gas pedal and not held it to redline if that's what you thought was dangerous. Was the line of cars behind you the concern? That's their problem not yours. About the only "danger" was if someone road-raged on you and had a gun or something. You can't live your life worrying about stuff like that.
