I'm a bit puzzled if you considered me cheap when I'm actually very often blamed to be narrow-minded with OEM options only.
Anyway, excluding the RHD blower parts, I believe the referred thread had pretty much the necessary info. I was not able to find (quickly) any forum thread that would not have anything irrelevant or non-OEM, the intention was to refer to something that should be useful, not claiming the thread would not have errors or cheap solutions. At the end it is the car owner deciding which way to go.
Also the "re-inventing the wheel" issue often comes from the fact that the existing knowledge isn't exactly freely available, for obvious and quite acceptable reasons. This thread can easily cope with more links to already existing info.