Well, we made it. The weather turned freezing, and the pass was "Traction Tires Required", then the day we took off from Pasco, the pass cleared and it was "no restrictions" If I felt it get a bit squishy on the road, I put the truck on 4wheel.
We bought a new 2013 Chevy 2500 HD Loredo to pull it.
It pulled it rather jerky, not sure why. We have an 18k Pull-ryte hitch.
Now that it's set in place in South Everett, we find that Chief's RV, who sold us the unit, didn't clean it, and didn't have the antifreeze in the water lines. These froze appreciably and we've now spent about $600 getting that fixed.
Ed, the Service Manager at Cheif's RV is a good and fair guy. The rest of them, mainly the sales team, earn Chief's RV a very poor rating. I'll be contacting Ed again and send him a report and ask him to refund half of the cost of fixing all these problems. Now I have to go figure out why theres no heat to the bedroom, when I finally don't have to work all day and all night.