My friend won't play the 1.7.10 version but he will play the 1.15.2 and I wanted to play with him.
two years? I would say we might be able to get the NPCs and quests in this year, then it would be playable (by that I mean the basic functions would all be here by then)
It would be perfect if we can get to that point when the cave update is out :)
What do you think?