Looks like a sound, safe list.
I've always preferred a few decent dry bags to help protect and organise my gear versus one great big pack liner - just seems a little more efficient both in terms of space use and organisation.
For November on the OLT you're unlikely to need carry more than 750mL-1L on you at a time, but as others have said, it's definitely worth having another big bottle or bladder etc to save making lots of trips to taps etc. at the end of the day for cooking.
You'll definitely want more fuel - take one canister each. Ideally each person should have their own cook system just in case you get separated/lost, though that's probably less of an issue on the OLT. Still good to have a back up in case of equipment failure though. A BRS3000T-type burner and 500mL pot can be had off eBay for not much, a smaller JetBoil canister fits inside perfectly so the whole kit is nicely contained and doesn't take up much space.
Don't skimp on variety when it comes to museli bars etc. After 4-5 days you'll definitely be sick of eating the same sort of bars and be merrily swapping with others at Bert Nichols hut
Talking from experience here.
In a similar vein, don't skip on toilet paper. The excess will give you more bargaining power on the last couple of nights with those people who didn't take enough. Again, talking from experience.
It's worth having something a bit more secure/animal resistant to keep rubbish in. They're a little pricey but the Sea to Summit rubbish dry bags are great on longer trips where you tend to generate more waste. Easy to clip them on the outside of your pack during the day and keep them inside the huts at night with your main food bag so critters aren't tempted to chew through your tent.
I'd definitely take more than one pair of gloves. Wet gloves aren't fun, and if it's properly cold/snowing, they're dangerous. Ninja Ice Fleeces etc. are good cheap backups. A light pair of Ninja gloves are great for rock scrambling or protection through scrub if you do some of the side trips, save tearing up your good, expensive gloves.
Would also suggest - if some of this gear is new or untried - is to do a short overnight 'shakedown' trip to make sure everything works as expected. Far better to figure out you need something else then than on night 2 of a 5-night trip
Cheers, Ben.