@Navigator - Apologies for the extremely late reply! :mmm:
1) Getrag 260/6 - 5 speed
2) I'm assuming it will cost around 6-7k for the whole conversion
3) Usually you will get better fuel consumption as you can coast down hills etc, and the fact that the manual boxes are lighter than the autos
4) Fortunately my 7 has the clutch return spring perch already on the pedal box. It makes it easy swapping the pedals across. If you don't have that spring perch you will have to swap the entire pedal box, which is a pain in the ass. (Ask Leonard - he knows)
I wouldn't have any idea as to what the fuel consumption is like. Rick540 has had a couple E32's, i think he would be the person to ask regarding that.
I paid in the region of R8500 for the whole car. Unfortunately it will cost a lot more than that to make it presentable and actually drive anywhere

:mmm: