Piston for ‘n 318’ Chrysler Mot

Hello everyone! I’m looking for a supplier for the first oversize for pistons. Unfortunately you can’t get any information about costs in the I-Net. The manufacturers/suppliers I’ve emailed so far need at least one sample to give me a price idea. Who can call me (please!) a price and a good, fast supplier ev. to that. The engine has the number 4006730-318-12( more I currently don’t have at pc) Thanx for your effort PS: if someone still has a Bloc k with oversized pistons? Even for this I drive through all of Germany!!!