While running errands, I went to Sixth Avenue Porky Prawn Noodle at 7:30am on a Sunday... & there was STILL 1 person in front of me. By the time I finished my food (& coffee), it was 8:30am & there was a pretty long line of ~10 people 😲
The prices displayed are for the soup version; you pay $0.50 less if you opt for the dry version (except for the Pig Liver Kidney Mee Sua, which is soup-based). Re portion sizes, there are 2 sizes to choose from; I got the smaller sized ones.
Come early or perhaps during off-peak hours to beat the queue! I've seen posts on social media that show insane snaking lines. Driving here can be quite a pain, as parking is limited - but I got lucky that day.