@Lamont
Thanks for making me aware of the Speedster Stoves website. I couldn't make up my mind whether to buy the 20ml or 30ml burner, so bought both, with matching stands.
I also bought the 100ml meths bottle, but height 138mm, it is too long to fit in my titanium pot, vertically or horizontally. Could carry it elsewhere, but like the aesthetics of having all the cooking/kitchen gear inside the pot. Also it will catch any leaking meths. And, the bottle won't get squeezed.
I looked around on Aliexpress, and found that same bottle, looked some more and found one that is also a soft dispenser bottle, various sizes including 100ml, and a bit shorter at 108mm:
https://www.aliexpress.com/item/1005001953023868.htmlAlso here:
https://www.aliexpress.com/item/4001079924366.html

- soft-dispenser-bottle-100ml.jpg (44.53 KiB) Viewed 32746 times
They arrived today. Opening is 9mm, so a funnel is needed to fill them. I bought this one:
https://www.aliexpress.com/item/1005001498583005.htmlChose Aliexpress Standard Shipping, bottles and funnels arrived within two weeks.
Actually, I can fit two or three of these bottles in the pot, so no need to carry a separate larger bottle on a multi-day hike.
Thought I would post this info, in case anyone else would like a shorter bottle that fits inside their cooking pot!
I tested it, filled it and left the bottle on its side for sometime, a good seal, no leaking. Even squeezed it a bit, no leaking.