All of the mods that are in this modpack are OK for me to use. Though I would like to especially mention these mods-
Metallurgy = http://www.minecraftforum.net/topic/744918-164forgesmp-metallurgy-putting-the-mine-back-in-minecraft/
Damage Indicators = http://www.minecraftforum.net/topic/1536685-172164forge-hit-splat-damage-indicators-v311-rpg-ui-and-damage-amount-mod/
Carpenters Blocks = http://www.minecraftforum.net/topic/1790919-17forge-carpenters-blocks-v314/
Allomancy = This mod doesn't really have a forum but you can still download it here - https://drone.io/github.com/legobmw99/Allomancy/files
Tinkers Contruct = http://www.minecraftforum.net/topic/1659892-164tinkers-construct/
Backpacks = http://www.minecraftforum.net/topic/1492661-15x-16x-backpacks-v-12837/
Archmedie's Ships = http://www.minecraftforum.net/topic/1857899-172-164forge-archimedes-ships-v15-advanced-ship-creation/
Metallurgy = http://www.minecraftforum.net/topic/744918-164forgesmp-metallurgy-putting-the-mine-back-in-minecraft/
Damage Indicators = http://www.minecraftforum.net/topic/1536685-172164forge-hit-splat-damage-indicators-v311-rpg-ui-and-damage-amount-mod/
Carpenters Blocks = http://www.minecraftforum.net/topic/1790919-17forge-carpenters-blocks-v314/
Allomancy = This mod doesn't really have a forum but you can still download it here - https://drone.io/github.com/legobmw99/Allomancy/files
Tinkers Contruct = http://www.minecraftforum.net/topic/1659892-164tinkers-construct/
Backpacks = http://www.minecraftforum.net/topic/1492661-15x-16x-backpacks-v-12837/
Archmedie's Ships = http://www.minecraftforum.net/topic/1857899-172-164forge-archimedes-ships-v15-advanced-ship-creation/