[want to buy] Looking for Zprint 450 or Zprint 650

Actually I am not an expert in the field of graphic design and I am still new to the 3D printer, but I want to start to build a business in my country based 3D printer technology.
So, forgive me if there are "probably" look silly by you on my questions.

I want to buy a 3D printer machine,
My choice is between: Zprint Zprint 450 & 650.
Actually I prioritize "printer used". But if I find a seller printer with the new conditions at lower prices than the market, then I would be interested too :)

So, if you have Zcorp 450 or Zcorp 650 used for sale, let's please write to me soon, I really need that information immediately.

Before we talk about price, please inform in advance the condition of your printer briefly.

I'm serious, then I hope you are too serious. :)

Actually I no problems of any country you come from, I can do international transactions, or come straight to you in your country.

You can contact me at: AD.rta@outlook.com