Sounds like a great idea! We know that the Dhamma will eventually decline and die away and then in distant future time Metteyya will reinstate the Dhamma. It would be nice for those future generations to have some "archeological" evidence of the Dhamma era of Gotama-Buddha.
I saw a documentary (think it was Discover Channel) called "Life after People" and it was very interesting and a good display of anicca (impermanence). It showed using computer animation what would happen if humans disappeared from the planet for whatever reason(s). In just a few years or decades, weeds would over take many homes and structures, whole freeways would be crumbled or un-noticeable. After about a few hundred years, even large skyscrapers will come down from not being maintained and repaired. The internet is one of the first things that would be wiped out, unfortunately (or is it fortunately -- for some). This is because all data is kept on servers and require electricity, climate control, etc., all of which would be gone if there are no humans to maintain them. Books and papers would also disintegrate pretty fast, including some important documents in museums again because climate control / air conditioning would be gone.
The one thing that would remain for 100,000 years even perhaps a million years or more according to the documentary, are the sculptures and works of art that are carved in marble and granite, for example some Buddha statues, art work, Mt. Rushmore in South Dakota (carved in granite). Therefore, the Tipitaka at Kuthodaw Pagoda
should survive. It is carved on 729 slabs of marble in Burma. Maybe it would be good to do more of that in additional languages and in different regions of the world.