This project would be a Minecraft 1.7.10 (only) command-line utility, derived and complementary from our Minecraft Region Scanner tool, to merge two sets of region files into one, automatically adjusting heights in neighboring chunks and regions in the « background » set to those of the « foreground set ».
It would ease the distribution of LOTR places (or other mods), regardless of the original seed of each set of region files.
The Region Scanner tool would have to be used first to align blocks and items IDs, and to crop the « foreground » set of region files to the minimum wished (usually some terrain around the builds). A yet unimplemented autocrop option would ease this...
The « background set » of region files would have to be fully generated on the destination server (perhaps using some chunk generation mod like chunkgen).