After a little of advice/info.
The electric window on the drivers side front window stopped working the other day and stopped in the down position

so I took it apart and put it back together with the window in the correct position. I stupidly forgot to take a part number or check for voltage.
A few questions:-
Anyone know the part number?
Will rear window actuators work on front windows?
How much should I be paying? £82 second hand is the best so far
Anyone got one for sale?
What model/year cars will have the correct actuator?