>>300758259
>but i think it's too easy to fuck up
It's a chunk of an environment. How do you fuck it up? Have people build their chunk of the land centered at 0,0,0 so the environment owner can plug in the offset themself to line shit up. An authored list of shaders to use if you're not sticking with Unity defaults. 

>especially if you aren't as experienced
Depends on the complexity of the project. Always keep shit simple. Folks who don't know what they're doing can just stick with a static prefab.