Would it be possible to add support for Cobblemon's archeology features? Or possibly allowing the loot tables for BetterArcheology to be edited via its config file

Yes, please! This would be amazing! @Pandarix do you have a discord? If you wanted to crowd-source simple fossil statues of the pokémon, I am sure people would be stoked especially from the official Cobblemon discord server (cobblemon.com)!