OK folks, as promised, I have not given up on Yamato and am now back to work, although I can't guarantee how constantly I'll be working given other commitments. Below summarizes my efforts on the Yamato's bow deck over the last several days, with the intent on adding much more detail than is included in the original mold. Most of the corrections shown here are included on the new mold:  

Overhead view that shows everything worked on recently, which can be divided into Ishida replacement pieces and scratch builds to represent plate welds and a replacement chafing plate. BTW, Super Illustrated Yamato (and no one else) shows two elbow-style air vents/fans located directly in back of the capstans. Since the pieces are included in the Hasegawa "extras" package, I went ahead and added them. Also note that I built up the break water located at teh far end of the area. This is represented in the original mold, but is much fainter and less pronounced. My new piece also serves to hide the filling necessary to adjust for my new deck. 

Angled view with a better view of how the new pieces appear so much nicer than the originals. While scraping off the molded-on anchor chain, I was left with an unattractive corrugated effect on the chafing plate and scratch-built replacements out of thin clear plastic sheeting. The mottled effect is actually the glue on the underside, which will disappear from view once painted.  The new mold does not have chafing plates under the two secondary anchor chain pieces, but this was impossible to represent without sanding off all of the deck grid pattern first. 

The pattern for the weld lines was copied from the new Tamiya mold, but stylized to a degree since my plastic strips are a bit over-scale, and adding all of them would have made the area just too busy. However, note that unlike earlier representations, the plates along the sides of the deck are angled to follow them, rather than parallel to the hull. 

Another over head view with a better look at the capstan replacement parts. There are four extremely tiny brake handles included in the Ishida set that go here, but I will not attach them until after spray painting to avoid losing them to the air pressure.  

One more close-up of the bow, showing the Ishida fairleads and chrysanthemum piece.