Looking for Original 383 in Upstate NY

[Techtone]

I purchased a 69 roadrunner from the Albany New York area that is missing the original 383. It was removed for a nice 440 from a 69 sport satellite. Im Looking To Locate this engine and would trade the 440 for it. The car was also in the Bingington and Oneonta NY area at some point.

This number will be on the lower passenger side of the block above the oil pan:

RM23H9A182705

Any info is much appreciated. Thanks