Hi Welgrim,
Unfortunately, I can't make a custom map, but I'd love to help build medieval structures on it!
My IGN: Quinzeltjuuh
My best skills: building structures like small cathedrals, sorts of towers, houses, medieval cranes, custom trees, (all sorts of medieval structures really)
I'm also capable of World Editing, but don't ask me to do terraforming because I will mess up.
As I said I'd just like to help build, because I have never done anything professionally like this before. Usually I just build structures in singleplayer, on creative servers, or in Build Battles (of which I win 8/10) Because of this I might need some guidance tho.
But I am a very motivated and capable builder, so please hit me up!