It's total alright Catan, and since you are looking into Chinese-medium local school, you are not thread-jacking at all! I guess your decision of what kind of school to put your daughter in also depends on long you are planning to stay in Hong Kong as well.
[For our family, we are planning to stay in HK for a longer term (probably close to retirement). I studied 4 years in a local primary and the rest of my school lives in Canada, and personally i prefer the non-Asian way much better. My son is very much a DNA replica of me character-wise, plus given he has sensory integration, we are pretty sure IS is the way to go for our family. For people planning to go IS, gaining admission into a through-train school at kindergarten has nothing to do with difficulty or easiest of studying (studying is difficult and takes hard work no matter where you go), but the amount of placements available in the top Int'l schools. Ever since the wonderful mainland/local government tried to introduce "national education" (pro-china brain washing) into the local school cirruculum, the number of local students trying to jump into International schools has escalated, and i can foresee this to get worse and worse as the years progress when ppl realize mainland intervention on education is not going away. Finding a good through-train school now can prevent the child the need to fight for school places each step of the way. Yes, tutoring classes after school is inevitable in HK even in IS, but at least a child can concentrate on learning at one's own pace instead of aiming to please school entrance exams and doing extracirriculars just for a good looking profile for school entrance purposes.]
For local schools, if you are planning to keep her there until high school graduation, then you need to find a good (pretigious) local school just so she has a chance for University entrance. If you are planning to stay for just a few years and return home thereafter, then any chinese medium school should be fine. Again, let me know which category you fall under, so that the right advise can be given