I'm wondering if the mod "BuildEverywhere" is a necessary mod in addition to this one.

I noticed these in the .json:
"BBP_BaseBuildAnywhere": 1,
"BBP_FlagBuildAnywhere": 0,
"BBP_TentBuildAnywhere": 0,
"BBP_VanillaBuildAnywhere": 0,

If I'm assuming correctly, setting these to "1" will do the same thing as the "BuildEverywhere" mod. Maybe I'll test it out and report my findings.