I had a go at the origami boat building site and find some Brent boat's that are not that ugly. I would say that even if the design is very conservative, the general aspect is nice, for a home built boat, including the interior:
But I confess this stability curve (36ft) leaves me confused:
Most of the stability curves of steel boats that I have saw take into consideration the big weight of the boat (that contributes to the RM) and normally have not a big AVS neither a very low CG. Normally those boat have a lesser B/D ratio than on a much lighter fiberglass boat. Their weight gives them much of the stability they need. They do it that way for not increasing substantially the weight of a boat that is already very heavy.
On your stability curve, considering that is a low draft boat without a bulbed keel, you have a AVS and a GZ curve that needs a huge B/D ratio. Certainly over 40% and probably near 50%.
Since your 36ft weights 17,280 lbs and the ballast is 5700 lbs, that gives a B/D ratio of 32%. That looks fine to me but one that would make that curve impossible to get, considering the Draft 5'10" and a non bulbed keel. I would say that not even with a bulbed keel and that draft you would come close.
Also a bit confused with the value of max GZ for a your relatively narrow 36ft. If I understand well you are using meters as unit and that gives a GZ well over a 1m? That is a measure for a 40ft racing beamy boat
Brent can you explain me how do you manage that GZ curve?