This. Godzilla will have way more power and almost as much torque as anything $40k and under with a diesel. Yes, 600lb-ft is nice, but 4 gears aren't. I had a 5.9 CTD Dodge. Beast. But couldn't pull my 13k toyhauler in 3rd up the grade leaving San Diego, and 2nd was worth about 50mph if you really liked sitting on the fuel cut. 7.3 will have less torque, but 10 gears to multiply it, so will likely be much more pleasant/capable tow pig other than fuel economy.
If you order, 99% of the dealers will do MSRP + applicable rebates at delivery since it doesn't cut into their allocation. 4-5 month wait when we ordered in October.