Not so simple, I fear. I did take it Auto Unequip Arrows as you suggested, but the bloat continues unabated. I picked up 3MB per save on average, and am now at 32MB total as of last save. I really don't want this to be the end of my Skyrim experience... but this is getting to be untenable.
IMO, For the bloat go away, perhaps is better to wait 30 days in-game. At least, you give the game a chance to respawn correctly.
You have a lot of mods, some are doing the same thing (although in a different way): Mart's Savegame DeBloatifier and Possessive Corpses, for example. You just need one of them (Or even better, you can pick up the last version of USKP and remove both). You also don't need HighRes Texture Pack Fix if you don't have the DLC HighRes Texture Pack from Bethesda in your game.
I compared your list of mods with th OP list, I don't see any common mods that may cause that kind of bloat (+60 Mb).