If you can lay your hands on a Losmandy Starlapse
a possibly useful link is here (sadly no longer produced), grab it!
I'd say it trumps anything on the current "travel" market (also pictured is my former FSQ85 which, in a moment of madness, I sold
)
My new squeeze is however a AP92 Stowaway, which neatly fits into an airliner overhead locker compatible camera bag....but has yet to sit under the shadow of the moon.