1953 Chevy 3100 - currently has a '48 216 in it

I am looking for a 235 to rebuild. Here are my choices

1953 - FREE
1955
1957

From my understanding the 1953 would only be full pressurized oil if it came from a car w/powerglide and it still has babbitted bearings. So although it is free I could only be getting a bit more HP. If I rebuilt it would make sense to have the rods with inserts?

Correct?
Thoughts?