The crankshafts rear main oil hole is clogged with rust.... the means every oil galley is suspect both in the crank and block.
To me that is a huge red flag. Rust is oxidized metal... so you have to wonder did the engine run with 'rusty oil' or did the rust come from the oil passages in the crank?
Lots of shops no longer have hot tanks... and baking it may not get it all.
Proceed with one word in mind: CLEANLINESS
Triple check everything for rust/grit or your $1500 rebuild won't last 1500 seconds.
