Evening Jag thanks for that , this is what my dash looks like.
The top row of switches are from left to right,a standard Z3 air con switch modified to look "old fashioned" then two switches for front and rear fogs (only rear in use) then a switch for the Hazards.
The next row down are the three Z3 Heater controls again modified. The hole above the line of four switches allows me to see the Z3 mileometer (this is where i positioned the Z3 instrument cluster PCB) this came in useful at MOT time!
The two things left to do are to make a panel to replace the Z3 Glove Box which no longer fits and to find some 8mm sticky vinyl letters to stick on the heads of the various switches
F for Fog L for Lights etc , Geoff .