Our 5.4L sits in an F250 but we've been towing an 8500~lb 5th wheel until last year when we bought an 8500~lb TT. The list of tow vehicles is in my sig. I have no regrets. My 5.4L F250 is the first truck I've owned in a long time that I haven't been anxious to trade for something else. If we lived in or towed in the Rockies, I'd want another diesel. Around the southeast, the 5.4L does well for us.
I just bought an Equalizer 4 point 10k hitch today to replace my Reese HP Straightline hitch. No drill installation and made in USA. Go to etrailer.com and read reviews on it. I'll find out for myself Sunday when we head out for a week.