And that's still not an answer!
The question is....
IPS panels don't have better colours than VA. The only reasons to pick an IPS panel over a VA one are you need the viewing angles or you want to use it as a computer monitor.
In your last thread, you were talking about the best picture quality, 4K discs etc.
None of the TV's you've linked to is capable of decent HDR which is the major selling point of 4K, especially on a smaller screen where you won't notice the resolution bump.
The TV I linked to is a £1799 TV that's going for a bargain now as it's an older model and is £999
It's far, far superior to the TVs you're looking at, has good HDR, is 5" larger and is a bargain.
But... only if you don't need wide viewing angles, which you haven't answered.