Thanks for all the input, I decided to cut some foam and insert the main unit, and the coil into the carry on. And since I was traveling to a place with no frost I've been able to get out for the first time with my new V3. My first experience with the new toy was a pleasurable one for sure, I found a few coins
and a "diamond" ring. I'm not sure it's a real diamond as the ring has "gold" peeling off it. But it was a surprise nonetheless. The thing I struck most by this machine is it's relative ease with deep targets. I'm not used to finding stuff deep, and the digging is a bit more painstaking, I can see how a pinpointer would be very useful for deep targets as the targets seem to always be at the side of the hole for me. (some miscellaneous coins, oh and one wheatie..yay!) I'm fairly certain this park has silver in it, but I doubt I'll get the chance to hit it again.
Now if we could just make the seats bigger, and the legroom on the airplanes a bit less like medieval torture I might enjoy flying again.