Carisma GTB
 

I would like to know if there is a setup station or a better way of setting toe out on the car or are people just measuring it against something straight or by eye ?

I'd be interested to know how people do this. I have a camber gauge but never seem to be able to set accurate toe in

Measure the track width of the leading and trailing edge of the front wheels. If they're the same then toe is 0.

Any other angle can be calculated. E.g. 1 degree toe out is leading track 1.1mm wider than trailing.