Congrats on the 19H! We bought our 2011 19H last May and have 7 great trips under our belt. As far as suggestions, we do a fair amount of drycamping here in CO and added a 2nd battery. Here's the mod I posted: http://www.jaycoowners.com/showthread.php?t=3300
If you need additonal info on the mod, let me know!
We tow with a 4.0 V6 4Runner, Blue Ox WDH, Primos IQ brake controller and have no problems going over 12K ft passes, so with your 4.6 Explorer and setup, you should have plenty of power and control.
Given the lack of kitchen countertop space, I bought a 22" wood cutting board from Walmart, added some wood blocks on the bottom that snuggly fit between the stove grate. Sorry, I don't have pics to show, but here's the exact board: http://www.walmart.com/ip/Paula-Deen...cacia/11015409
Have fun this summer and let me know if you have any other questions!