Drachenhoehle+

Additional Server+Clientside Mods:

"sit!" - For sitting down
"Carry On" - Carry Chests and small entities with Shift+Right Mouse Button
"Macaw's Fences"
"Macaw's Paths and Pavings"
"Macaw's Stairs"
"Macaw's Doors"

Additional server-side Mods:

"Hey That's Mine" - for protection of chests
"Respawning Animals" - Helps animals to spawn in existing chunks as well (has to be activated for existing worlds, see the documentation of the mod)
"Multi World Borders" - For setting world borders individually in the dimensions
"spark" - For performance measurement: /spark tps
"Grieflogger"
"Entity View Distance"