So I'd looked around to play a shroomblock and I discovered this
http://www.planetminecraft.com/project/shroom-block/
But playing through it I ran into a couple problems:
1. The folder size was around 470mb
2. The map was right at the bottom of the usable area for a map
3. The Villager Hut was REALLY far away.

So I solved these problems by doing this:
1. I redesigned the map from scratch, now it's a compact size of around 4.7mb
2. I set the bottom of the shroomblock to 63 on the Y axis, which is sea level
3. The villager hut is now 7 blocks away, opposed to the original 20

I did some additions as well
Additions:
1. The villager platform is now a giant mushroom hut made of brown and red mushroom blocks
2. I added 3 more villagers.
3. Villagers can now trade 100 red mushrooms for Mooshroom spawn eggs, 10 diamond ore for 64 dirt blocks, and 20 red mushrooms for coal ore.

I feel like this is a more complete version of this, feel free to give feedback so I can fix any problems that might arise~ I'm happy to help fix any bugs I didn't account for. I made this version because the original uploader hasn't been on for a while.

Credit to the original by Wolfman87X

I hope you all enjoy~