>>51607715this is an interesting idea for sure. We don't have headbutt trees but we have modified the code of cut trees to have wild encounters/give berries at random, so maybe Seedot could go there.
I'm cautious about adding pokemon that aren't from gen 1 and 2 to Kanto though, as I both don't want to lose the spirit of the region, and I want to make Hoenn feel more gen V (we're replacing a lot of the Kanto and Johto mons with newer pokemon).
Here's the alpha map of Kanto.