I know about the paperwork but I think for used - low/no value items it is just a single page stating so. At least this is what they told me last time I did it.
As for shipping last time I checked at
www.usps.com for a 2lb package via Airmail Letter Post it was something less than US$15. For a 4lb pack it was cheaper via Airmail Parcel Post (clsoe to $20). I can look it up for you if I know the weight and approximate pack dimesnions.
In any case, if you have time and no other "way out" here goes:
Chris Pronios
28 Astydamantos Street
Athens 11634
GREECE.
TIA
Chris