Fully updated post.
Trip;
50 days in Japan. October/Nov 2015. 1200km mostly urban walk. Food and clean water abundant – shops everywhere.
Accom;
Approx 35 nights indoors on floors, 10 nights outdoors on sheltered concrete, 5 nights outdoors no shelter.
Weather;
Averages: October 55-73 deg F. November 48-64. Average 10 days rain per month, with October being heavyish rain (100mm).
Here's my current gear list. I'm shocked at how much there is. I was hoping to pack really light.
"Shelter etc"
Backpack Vargo TI-ARC
Bivy Outdoor Research Alpine Bivy
Sleeping pad Therm-a-Rest NeoAir Xlite (xtherm for $300AUD)
Sleeping bag Locus Nyx Quilt OR Ketabatic quilt
Trekking Poles Locas CP3 (???)
Pillow Exped Air Pillow
"Misc"
Maps Guide book (map pages only?)
Sunglasses
Sunglasses strap
Hat Outdoor Research Sun Runner Cap
LED head lamp Black Diamond Storm
Towel Sea to Summ Tek Towel, Large
Strapless low gaiters Levagaiter or similar
"CLOTHING – Active"
Shoes La Sportiva Helios
Raincoat Marmot Precip
rain pants ???
Trekking pants (x1) Prana Zion (non-convertible)
T-shirts, marino (x2) Icebreaker 150
Bandana
Gloves ???
Socks, marino (x2) Darn Tough
Long sleeve shirt (x1 or x2???) ???
Undies (x2) me undies
Belt
"CLOTHING – Sleeping/indoors, always kept clean"
Socks, marino (x1) Darn Tough
Undies (x1) Me undies
T-shirt, marino (x1) Icebreaker 150
Trekking pants (x1) Prana Zion (non-convertible)
"Other Crap"
lighter, small (remove child lock)
paper book matches
razor or knife?
chux for wiping bivvy
sunglass cleaning microcloth
emergency toilet paper
duct tape
rope for emergencies
journal and waterproof pen
trash compactor bag (as backpack liner)
repair kit for bivy/airpad to be confirmed
stow bags
water bottle
spare batteries for headlamp
"Health / First aid / medicine"
pain killers (check legality)
hyrdopel
moleskin
leukotope
nail clippers
tweezers
sunblock
lip balm
ear plugs
liquid soap
tooth brush
toothpaste
crotch rub protection
Things not needed;
Compass
GPS
LED torch + charger
water purif
Cooking gear
electronics not confirmed yet.
Any advice or thoughts would be most appreciated. Thanks.

