273 pistons?

Any body know of a person or supplier that has any pistons for a 273 motor. I have been unable to locate any from the normal suppliers like Summit, Manciene Racing, Jegs, etc. Some of the racing piston suppliers like Ross and Keith Black will custom make me some but they want $1000. Maybe some body has a set of .030 over pistons in the attic they were saving for such an occasion.
Thanks
Jerry