Alan,
Thanks for the info! Not so much on your timing, HA

!
The team that found her, estimated: "the ballast consisted of 40 tons each of pig iron bars, stone, gravel and French shot."
I believe the iron ingots would be deepest in the hold, along the keel. The looser/smaller stone/gravel/shot would then cover this "permanent and heavy" layer, providing a somewhat more flexible layer for barrels and cargo to nest in.
I've never seen any BHR models (including a museum quality scratch build on the NRG forum) show the ingots but to be totally accurate, they should.
My goal in the build is to make a reasonably accurate "battle-mate" to go beside my scratch build of HMS Serapis. Secondary goal is to get friends and family to ask questions. To that end, I included some ballast, placed tools at the cannon stations, rigged the cannons three different ways, and plan to set her on a "building/launching" ways.
I appreciate your feedback and insight!
Brad