I don't know about customs in the czech republic.
But in Germany there would be at least 19% added to those 247€.
You won't have to pay any customs within the EU.
And shipping will probably be a lot more exepensive as well.
So you would probably end up with ~350€.
Don't want to talk you into or out of sth. but keep that in mind.
Warranty period should be longer as well (24 month if I remember correctly).