1970 Chevrolet Chevelle Malibu 350 5.7l 52k Org Miles CA Car (Number Matching?)

I have had this car since 1993. I have a valid California Title in hand.
1970 Chevelle Malibu in very good condition with all parts and accessories.NOT RUNNINGNeed motor and transmission rebuild.
I believe this is a numbers matching motor and transmission but am having trouble finding the serial number on the block and transmission case.I have posted pictures of all number I have found on the engine.If someone can tell me where to validate the engine and tranny IDs I will add additional pictures.
No significant rust except around the bottom corners of the rear window which is typical.The trunk and interior floor are VERY solid and in great condition. The trunk has an area of light surface rust on the upper deck, but is still very solid in that area. Again it's just surface rust.
Interior is all original including original headliner in OK condition. Back deck fiber board will need to be replaced but underlying steel frame is all good.
Original colors but has been re-painted at some time in its life. Before I owned it.
This is not some piece of crud barn find with missing parts.
All trim, pieces are there and included.
Frame is good, straight and solid.
MILES ARE ORIGINAL and not flipped over.
I'm not sure what else to say here. I have other projects.I'm sure there will be other questions.
Ask any questions or for additional pictures.
I am happy to provide any additional information.

On Aug-30-19 at 16:08:42 PDT, seller added the following information:

Additionally, I am only accepting CASH. Or maybe direct wire transfer on verification of collection of funds.
I do not have the resources to deal with international buyers. So U.S. buyers only, maybe Canada if I am contacted ahead of time and make that arrangement.

On Sep-01-19 at 11:38:53 PDT, seller added the following information:

Answering some questions:This car has factory Air Conditioning.I will post photos of undercarriage, engine compartment, and trunk on Tuesday as I am away for the weekend.

On Sep-02-19 at 19:18:08 PDT, seller added the following information:

Found engine serial numbers.This IS NUMBERS MATCHING engine.See picture of block serial number added today.