Digital BW, The Print

Hello,

I got a used Epson 1290 printer (working, very clean inside, very low 
milage).
Now I want to order UT2 CIS with Ebony black for this printer. Could 
you advice me if I need anything else to be added to the same order?
I'm from Europe and it would be a problem for me if after having 
received the system I happened to need any other accessory.
I read somewhere that MIS cartidges often have faulty chips and are 
not recognized by the printer. It this a common problem?
The printer has only been used with one set of original ink and then 
a set of cheap third party inks. Do I need to clean it before 
installing CIS?
Also do you have any recomendations on how the parcel should be sent 
and described to avoid unnecessary customs/taxes (I'm in Poland - 
European Union).

Regards

Tomek