I have no idea how to start a website Bill but I am sure its possible to find a volunteer, seriously the Hatteras community would benefit from being able to see history, your history anyway of bringing an old girl back to life, I'm constantly amazed at the woodwork you are doing, anyone else would have just bought a 55 gallon barrel of paint.
I work with concrete and I know what the lime does to my hands I can just imagine what yours must be like in the muriatic acid, I use similar stuff to REMOVE the concrete from my trucks, I hope it won't leach back out and cause health issues in an enclosed space, maybe you should have an ozone air treatment system? I keep the acid wash to a minimum, we have this citrus based stuff that emulsified the concrete splash, we just spray it on and then hit it with a high pressure washer the next day, it kinda turns into a soft mud, the acid though unless you absolutely wash it all off will eat the wiring, the hydraulic lines and of course any metals especially aluminum.
I do not know an exact chemical needed but have you asked about a neutralizer, use that as well?