Here is an excellent one


Its only 37 keys, but fits your bag...
Good thing, it fits in your luggage..
Just pack 2 of these and your laptop with varranger and VST's ..
Use the most left keys to trigger arranger stuff.. and the rest for your left hand

Actually the action despite the limited keyheight does not dissapoint, i am using this one on the couch next to my wife to program new sounds in Mainstage (VST)

However, since opinions are very personal, try before you buy as allways

But this would set you up for traveling, and you could play everywhere...