I like your pix, and this gives me an opportunity to say that I just read recently that Smith was exposed to universalism prior to his becoming a, well, ‘prophet,’ and I wondered if you had read that also, and what you might think of the influence that might have had upon him.
I really have no idea.
His active imagination may have been the most influence.
He took the concept of British-Israelism, which the English had put together in the 17th century to try and give themselves justification and prestige (as, pretty much until the 15th century the English were just considered another Germanic nation) -- Smith took that and made it American-Israeliism. Then there wer the new discoveries in Egypt (or rather re-discoveries of the old). They did not know much about this, only had awe about what was accomplished.
Smith took this and put little pieces together with a fantastic story
Plus in the 1800s there was the craze for buried gold and also the Religious revivalism. Smith put all of this together and came up with a piece of fiction that was for its time and audience, but is still bad fictional history as it puts things that are provably wrong (Semites in pre-Columbus America) unlike say the Scientologists who posit something unprovable (Xenu!)
A Scientologist-Mormon marriage of ideas may be interesting!