one thing to consider though, is that i get the impression that most 100% runners dont like "From the Ground Up"

Well, the goal is to build tarry town as the name implies I would say about 1 and a half to 2 hours fastest time, taking into account getting all the characters. I personally might be interested in running it. But im no professional so my times are probably off Also this is not my post its santibo's

Would this would require people to buy DLC, or would there be a no DLC category?

Yeah sounds good.