why would you go through all this expensive shipping deal?
a trainer is a trainer is a trainer, period.
any trainer you'll get in belgium is probable as good as the nexstar.
the nex is just a typical american product marketed with "all included".
Graupner and Robbe are some good manufacturers of rc planes located in
germany and have trainers, too. they may not have a product like the nex but
i'm sure you could get close.
I also think, the box from germany to belgium would suffer less than from the usa,
and if you have to return something, it's going to take a long time.