Perhaps, I don't understand the question, but it's really dependent on the approach for the intercepts of glide slope and localizer. For the speed, it is aircraft dependent.
For the 744, depending on gross weight, the average approach speed would be around 155KIAS. At Changi (WSSS), 02L/C you're generally vectored in anywhere between 10-14 miles to intercept the Localizer at around 2500'. Your glide slope intercept on those approaches is generally just before 8 DME
. Obviously, if you were vectored in higher the intercept would be further out (every 1000' would be just over 3 miles further out) and the converse would be also true.
Again, I'm not quite sure what you're asking, but if that isn't what you're looking for perhaps you could rephrase the question.