The Meaning of Life, the Universe, and Everything.
there is a way to get diamonds in skyblock you can find them in end citys in loot chests even if the end also if you have deleted the nether like i did to have it be normal you can get them some times in the nether fortress chests but there are more rare there
Have you thought about playing with custom crafting?
You could make a recipe, using say 5 blaze rods, a bucket, and three cobblestone to make a lava bucket. Or using four or nine ice to make packed ice. You could really expand the map using it and open up a lot more avenues of game play.
Great map by the way. I'm going to be restarting my world soon since the move to my new computer corrupted my save.