You could easily lose ten pounds of stuff, but it'll cost you Even if you ignored all of us and left with the kit you're currently planning to take, I'm sure you'll have a blast. But since you asked...

Camping:

tent - REI Hoodoo 3 - Tarptent instead. Save weight and space.
sleeping bag - North Face Aleutian, 20F degree - Get a summer bag (+/- 35 deg.)
sleeping pad - Thermarest So-Lite
pillow (stuff sack w/ clothes in it)
waterproof compression sack (for sleeping bag)


Other Camping:

headlight
sunscreen
chapstick - I'd ditch this and pick it up if necessary.
multivitamins - Probably not necessary.
baby wipes - You have a hanky and soap, why would you need these?
travel towel
soap/shampoo
bathroom stuff (contacts, glasses, toothbrush, etc)

Kitchen:

stove - Trangia Mini
fuel - denatured alcohol
fuel storage container
matches - Unnecessary.
lighter
cook-set - A pot with a lid is enough.
P-38 (can opener) - These are handy!
small spice set (garlic, cheyenne, salt/pepper)
olive oil
fork
spoon
knife
small cutting board
small scrubber
dish soap - You're already bringing soap. Unnecessary.
water purification tablets (for emergency) - Unnecessary.


Clothing:

one rain jacket
one shower cap (for head in the rain) - Unnecessary.
one bandanna
one fleece jacket - A synthetic or down jacket will be lighter and less bulky.
two long sleeve base layer/thermal - Bring one merino wool long sleeve.
one pair rain pants
one hat
one beanie
sunglasses
one pair riding gloves (my sailing gloves)
two pairs padded bike briefs
two pair shorts (one for on-bike, one off)
two pairs boxer shorts - Only one if any at all.
two cotton t-shirts - Merino wool tops would be better.
one pair wool socks - Two pair wool socks.
one pair waterproof socks - I'd prefer waterproof booties. Keeps the shoes dry too.
two pair cotton socks - Unnecessary.
one pair shoes (regular shoes - using platform pedals)
one pair board shorts - Unnecessary.
one pair flip flops (for showers and beach)
No lightweight pants?
No knee/leg warmers?

Bike tools/spares/etc:

tubes x2
folding tire - Unnecessary.
patch kit
bike multi-tool
presta valve adapters x2 - Unnecessary.
spare spokes
spoke wrench
chain lube
rag
zip ties
duct tape
spare bolts, nuts
brake pads - Unnecessary.


Miscellaneous:

maps (ACA)
notepad
pen
digital camera
camera battery charger
laptop w/ cord - iPad or other tablet device?
reading material (a good book that I haven't read)
wallet
cell phone - Unnecessary.
cell phone charger - Unnecessary.
trash bags (to keep stuff dry)
towel - Another towel? You have a bandana and a travel towel already. Unnecessary.
rags
ear plugs
small first aid kit