Spdoflight

Hi to all. This looks like a great forum. To introduce myself, I race a 92 Prelude in Champcar running a H23A VTEC Bluetop. Its a great motor. I am trying to help a friend that is building a B18C. He is in need of an unmolested bare block. It can be in rough shape, but it has to be serviceable and still in original factory specs. No machining. On the pad, it must have only "B18C" and beneath that the number sequence of "210" and then any four digits after that. Does anyone have any suggestions about where I can find such a block or even a worn out complete engine? Thanks. Matt