16 hours to R&R?? Last time I had the 273 out of my old '66 Barracuda I think it was out in 1.5 hrs. Granted I was still in my 20s at that time. We had the 340/727 and suspension out of the GTS in about 4 hours a couple of years ago. Shoot, I think the R&R on the 5.9 in my Durango was about 6 hours (I've done it twice for different reasons).
And, $11k for a stock rebuild???