Is 345 EUR (including shipping) an ok price for a boxed Famicom and boxed Famicom Disk System?

It depends on the condition and how much the shipping is out of the 345 euro. Lets say 300 euro, if its used then it is too much. Recently a boxed Famicom (no manual), 4 games and a loose Disk System unit was sold for 77.75 euro to be precise. I would not pay more than 200 for a boxed Famicom and a boxed Disk System combined.

Shipping was 45 EUR
Both system can't be used very much as they look brand new.
They come with manuals and the Famicom is actually white

Gameboy...that's still too much for both of them - i believe you would be over paying by at least $50

I sendt the seller and asked if he would do 300 EUR including shipping.
If not I might get the tea4two Famicom and disk system instead.