Not sure what handlebars you've got on your Fairlight, but the 31.8mm section on the stock FSA bars on my Strael actually extends quite far out from where the stem clamps on, which lets me mount the aerobars wide enough to squeeze a garmin out-front mount between the stem and the aerobar brackets. This is also more comfortable for me than having them mounted as narrow as they'll go up against the stem.
If you've already got one of the garmin mounts that is designed to have garmin on top and a varia light mounted beneath, you can get a varia mount -> gorpro adapter for the camera. Garmin/camera would be mounted a bit further from your face than if mounted to the aerobars, and it could clash with a handlebar bag etc., but might save buying a whole new mount/bracket.
Hope that all makes sense.