[Baron Von Zeppelin]

It wouldn't hurt to document them with some clearer pictures.
I can make out the 19 - which should be paint code for Black.
But I wouldn't put them back on it. (personal opinion / preference)

The 69 engine & tranny deal isn't real bad..
The others are really high.
73 TA only came with 455's and 4bbl's - you will have to crunch the numbers and letters on any prospect to authenticate - like you did on your blocks and heads.
Very few folks actually know what they have or have not.

All you need is a good 400 block.
Or maybe even check with a company like Jasper on a 400 short block already assembled.
You would have to eat the core charge though.

The best deals on full engines are usually from 68-70 Grand Prix 400
You get really good heads and 4 bbl intake/carb