If the pack fits and you like it, use it.
If the pack weights to much that is your fault !
What do you really need, do some research on distance
backpacking for ideas.
Get ride of the canteen cups or at least one of them
as advised above. Perhaps just use a 11oz. ( remember when it was
1pound) coffee can, a nalgene wrapped with a bit of duct tape fits
perfectly. With a coffee can you have a cup and boiler for half
the weight of any SS option. The can is so handy I would add one
regardless.
Drop the bandanas and towel, you have a fancy dog rag already.
Why the spare clothes, socks sure but why the rest?
A spare sweater for sure and windbreaker, perhaps a pr.
of cammy scrub bottoms if you want pants when you wash your
clothes but how often will you do that, every two weeks or longer?
There really is very little difference between BOB and long distance
backpacking. The big differences really aren't!