I started looking at the party but when I got done with the upgrades I found the Fat Boy to be a better deal. Then I found out about the unlisted Gator and that made even more sense for me. The Gator fits a hotel pan which I thought was a great feature.
Also I don't know how handy you are but I don't think the casters are worth it. I was going to get them but I really feel they are too small to make it easy to roll on anything but a smooth surface.
I got these: Amazon.com: Industrial Grade 1NXC2 Wheel, Semi-Pneumatic, 10 In, 200 Lb Cap: Industrial & Scientific@@AMEPARAM@@http://ecx.images-amazon.com/images/I/21QMBauThlL.@@AMEPARAM@@21QMBauThlL
and am going to fab up some kind of a axle to mount them on. Kind like a two wheel dolly. Tip the cooker back and it rides on those wheels.
Disclaimer: I don't have the cooker yet, it shipped today!!, my plan is to take lots of pics and post a write up of what I've done.