there is a mod called the pines  mod. its only 45% done and the creator stoped working on it. I just wanted to tell this to you cause I know the SWD team is a fan of gravity falls. again im just giving you this information.

here is the link to the mod to see for yourself: http://www.planetminecraft.com/mod/wip-pines-mod---v03-or-alpha-3-released-jan-10-2016-gravity-falls/

I just found out someone known as SOGGY MUSTACHE owns the mod now