O34 Kenyon Boom re-fit ('88 original rig)

I now have our boom back into place. Last winter I removed the boom to address a short list of accumulated concerns. The large SS eye that anchors the top of the mainsheet tackle was getting wobbly due (probably) some stretch or wear in the SS rivets that hold it in place.

The factory wire-to-internal-tackle was original, and although I had not found any meathooks in the external part of the wire where it is shackled to the mainsheet clew car, I was curious about any effects of aging of the internal tackle.
The initial repair item on that 'list' was some wear in the SS pin that allows pivoting, at the gooseneck fitting.

Removal mean't removing the lazy jacks (which are combined with a split sail cover, the "Lazy Cradle" system from UKSails, circa 2014). Then we took the mainsail home. Finally took the boom home. The main was taken in to the North loft for an inexpensive checkup and thread touch up, also.

The solution for the worn pin was to replace with a SS bolt with no threads in the load area. This required a rather long bolt with most of the threads cut off. The new bolt is secured with a bronze spacer and double-locked nuts, rather than a cotter.

The SS weldment was unbolted from the 5/16 thread set of bolts. All had been sealed that last time this was removed in the 90's, and the one bolt with almost-stripped threads was no worse and no better. I chased all the holes with a tap. Sealing the threads is a must, IMHO.

I also restored (with a new part) the former factory T-track piece on the starboard side of the aft section when a reef (or 2) can be dead ended, if there is any future desire to return to this system. I had chosen to use bowlines to terminate those reef lines, decades ago, but a future owner might want the "factory option." Those originall screw holes were all in good order, and I ran a tap thru each one. Since the Kenyon sheaves on both ends are turning freely, they were left alone, and the much newer internal reef lines were left in place.

Local rigger, Matt Crocker, needed the boom for about a week, to remove the internal outhaul, by removing the gooseneck cast fitting, and replace the blocks and the line. He even put in a snazzy splice where the factory had used a knot to dead end the line.

Project pictures attached.
And, perhaps a good time to reference some related threads that have some relevant pix, also.
Links:

This info may be helpful to visualize the internals of the Kenyon boom. even considering some variance due to section sized and perhaps original owner changes.
My u/l inage labeled "815" is the original tackle from Kenyon.
Also attached are three images from before we took it over to Matt's shop. Also pix of the gooseneck swivel.

Edit: adding a picture I took showing the slight oval-ing of the holes, along with some wearing of the original SS pin. The wood dowel illustrates the slight degree change.
A machinist friend shrugged at the slight oval-ing and said it was not far enough out of perfect alignment to worry about for a few more years/decades. Someday there might be a need to weld in some fill metal and re-bore on a milling machine, but not now. My intuition is that this may be a common wear point of Kenyon SS goosenecks. "YMMV"