I did the conversion over time m8 and in three parts:
1: The dials and MID
2: Switches
3: Footwell illumination
The dials and mid took the longest as I had never taken the dash to pieces before, and the dash had never been removed, so everything was screwed together factory tight! To say I was ****ting myself getting the heater vents out and stuff, is an understatement, lol!
I will do a how-to on removing the dash so you can see what is involved. The first time I removed the dash, it took me about an hour because I was in ***** mode and didn't want to break anything. The second time and every time since it has taken me about ten minutes tops to remove the dials, because you know how it all "works"
The switches are either the easiest or the most difficult.
The easiest way to do them is to just swaop them over for some that have been converted for you.
The hardest is to do them yourself. I've done loads of them and it's a bit like doing the dash... once you know, it's easy... but tedious depending how many you have to do.
hth a bit m8