23' Tsunami small deck core repair ?

[abl1111]

My 1975 Tsunami needs some core work where my windlass mounts. Pulled my surface mounted windlass to repair it and was surprised to see that water penetrated into the (3) through deck mounting bolts ( I shouldn't be surprised at this anymore ! ). They had been mounted with Caulk Life 12 yrs ago.

I removed all the wet wood via a drill and allen keys and am letting it dry out. I want to fill all, including the large oval hole where the chain and anchor line enter the deck with epoxy and then re-drill all again ( potting ).

QUESTION - What is the best way to assure that the epoxy wets out and fully fills the hollowed out core ? I was thinking I'd drill bolt holes wider, tape bottom of these holes as well as the large oval hole. Then, ID low point, aft probably, and start to syringe in epoxy there with minimal, if any cabosil added, to maximize flow. Then, cover the large oval hole with plastic, tape well and syringe epoxy through that until it flows out the mounting holes forward of this access spot.

Let harden and re-drill all.

Does this sound about right ? Advice if you have it appreciated.

NOTE: Under the entire windlass area, windlass and anchor roller, is a pc of 1&1/2" plywood (2) 3/4" pcs glassed together for support.