Others have made good suggestions on what to cut down or eliminate.

I think you're throwing people's estimate of the volume of your gear by your use of a 60L (or 70L?, you use both values) dry bag on the rear rack. If that's the size you actually have..WAY too big. I think a 30L or 40L would be plenty for your gear & still have room to roll the top and secure it.

Also, the dry bag in combo with a small elastic cargo net to secure it to the bike:


is helpful as you can wash various clothing bits and tuck them under the cargo net to dry while you're riding.