Whats It Worth 402 Big Block/400 Tranny

[Johns 66]

Hi All.

I am not very versed in 402 Big Block/400 Tranny knowledge and figured this would be the best place to find out. I have the opportunity to buy the motor below and wanted to know what it is worth along with the 400 tranny. I don't have really a use for the motor but 402 Big Block power...who can resist right?

The motor looks complete with all the accessories including the AC compressor, bracketry etc...I am sure the motor will need to be rebuilt but was told it was running when it was taken out, same with the transmission.

Sorry for the bad cellphone pic but maybe someone can offer some guidance.

The number on the back of the block is 3969854

Thanks,
John