Thanks for all the great responses, there are pros and cons to each setup and I keep debating between trailer, enclosed trailer, hitch setup, maybe bringing a smaller bike, etc. Front MC carry is fine but there can be possible damage to the bike if it rains and it is getting pounded with 70 MPH windows but mainly California law states anything that blocks your vision is a moving violation, even if a little. I am sure other states have similar law and really dont want to have a problem with LE when on vacation, so for that reason front carrier is out. That being said, If I had a low profile bike front carrier would be my first option with some type of cover. These trucks handle big heavy snow plows so with the assistance of tow hooks and front carrier carrying a heavy bike shouldnt be an issue.
I already own a Kendon trailer but it is soo much easier/faster/nicer when traveling without a trailer behind you. Backing up in general, looking for RV spots, trying to park in certain parking lots and keeping it at 55 MPH is painful (California law). So a 24 foot print is much easier to manuever than a 34 foot print. I do love the idea of an enclosed for protection from the elements and security.
I have been in contact with Torklikt and they said their 20k setup and 48" truss can absolutely handle the weight. My local guy said he can build a rack no problem. I met another gentleman over the weekend who tows with the Torklift setup and 48" extension and he has no issue either with his 330 lb bike. I wouldnt recommend it with a stock hitch setup as it flexes too much.
Boatycall, do you think your system can handle a 600 lb setup, probably another 180lb heavier than yours? BTW, if you buy this carrier, you can remove a few of the front bolts and the MC will set a few inches lower and if you tork down your front shocks, remove the mirrors and loosen your bars and tilt them forward, you may be able to squeeze it under the slide.
MC carrier It needs a longer ramp.
All that being said, I tried to load one of my lighter bikes this last week and drop it twice. In the process of trying to save the bike pulled some back muscles, I could only imagine with a 500 lb bike how much more pain/damage to the bike I would have caused.