The question I would ask, is how tall are you both?
I assume you are riding two bikes, rather than two up on one?
My friend Charlotte and I are planning to ride long dıstance on two XRL`s, and she has had hers lowered (by me!) with a lowering link, which made a significant difference. We will also drop the forks through the clamps by maybe 30mm.
We did not need to mod the seat, but this is certainly an option, to do yourself or maybe corbin or renazco.
I would talk to her direct, search for Charlotte Goose
I have just broken 8000km on my trip, from UK to Eastern Turkey, without any real dramas. Some carb issues which I will cover on the Honda Tech forum, posting in next few minutes.
I love the bike, would not change it. Extremely capable off road, quick enough on-road (though keeping it under 100kmph means excellent fuel comsumption), just travel as light as you can.
Have a look at my site for the prep I did on the bike...
Let me know how you get on.. Ride safe