I think you'll end up with a truck that is 500-1000 pounds over GVWR when loaded up for a long trip. What does your driver's door/B-pillar sticker say for maximum weight of occupants and cargo should not exceed xxxx pounds? That trailer will be 8500 pounds when ready to roll with 1200 pounds on the tongue. You probably don't have 1200 pounds of payload available (door sticker), let alone 1200 tongue weight plus a family of 4 or 5 and stuff to keep them occupied for 20 hour each way trips.
I would look for under 5000 pounds dry, and you'll still be over the truck's GVWR. Something like this KZ 232SS
would be good, Edge M22
would be great! My 2003 has maybe a little more payload than your 2009 (before those stickers were put on starting with 2006 model years, but I've been to scales empty). I have this TT
which I know is right near my GVWR and my GCWR when loaded up for long weekends and my family with 3 kids under 6. I do not plan on towing this TT far with my current truck and plan to upgrade in the next couple years. Both those two models were high on my list before realizing how practical the floorplan I chose was and the NT line is a lot nicer for about the same cost. I know I'd replace my current truck soon anyway (bought new 7 years ago), so I decided to test the waters with it and I can then decide if I feel 1 3/4 ton was appropriate or get a newer half ton with more payload, like the 2010 Max Tow packages with 1600+ pounds. So far, I'm really just wishing for more power, better fuel economy and new shocks. The weight is good and truck stance good. You've got the more power and gears, new shocks, but less payload. One more good option
from Crossroads RV.
Here is a similar situation
, but asking for a little lighter trailer with a(another half ton) Expy with similar payload issues. Everyone says 3/4 ton pickup or SUV.