You forgot to mention that the JG comes with a G36K conversion kit, as well as a sling, it's in the same city as you.. and that it's been upgraded :P
I've seen the JG G36 you're talking about and it is a good gun that's worth it... Ask anyone... Me saying that a JG is a good gun is a VERY rare occasion.
Gun Technician and Tuner
Well versed in every AEG version and all major gas and spring systems.