Umm..I want to join the nut brigade

[Fredwina]

i use a Topeak Beam rack with an expandable bag. works great. sometimes it's a little small, but I'd think it makes pack smarter
I carry tow or tubes and a patch kit. Unlike NorCal, we have to put with goathead thorns and Cactus spines.
Take a look at the route - does it have services? The 300K i did in March had no services on a 100K stretch.I had to laugh when I look at the Cue sheet for the Arizona 300K I'm planning on doing Saturday. The RBA (regional Brevet Administrator) had on her cue sheet "limited Services" . there's a store about every 50-60k. The San Diego series had water and stuff at their controls - You were on your own at Cayucos.
How long will it take you? and when does it start? That should tell you if you need lights and reflective stuff.
I also a have Bar Map OTG - I'm not sure if it's available "down Under". I also have light on my helmet that I use to read the map and Computer at night;
Here's my Brevet bike. I've put a different handlebar on it:

and here's my "night rider" helmet:

[SadieKate]

I carry tow or tubes and a patch kit. Unlike NorCal, we have to put with goathead thorns and Cactus spines.

Whachu been smokin'? Goatheads all over inland northern California. And this nasty creeping vine that seems to grow mostly along bike trails and throws thorns at you as you ride by. Plenty of prickly pear but it seems to keep its thorns under control.

BTW, whoever asked. The bar map that Fredwina photo'd is actually larger than the Bar Map of the Gods. The OTG is the "queen" because it folds up and has pockets, but the profile of the folded map on your bars is smaller.