This spring I am going to attempt an Ironbutt SS1000 on my 650R. If it's good enough for that, it should be good enough for a cross country trip. I would just have to figure out how to lube the chain without a centerstand. But I will have the Airhawk seat pad instead of the sheepskin pictured here. All the sheepskin does is make the bike goofy-no comfort gain.
But a really great accomplishment would be to do a cross country ride on this awesome great looking bike