A Puzzle with Fringe Benefits

Having read Alan Connor's 'Two Girls, One On Each Knee' whilst hiding from civilization in the far west of Ireland, I was inspired to push the boat out and have a go at something a little more challenging from a setting point of view. 

Here it is for anyone who's interested. 

A Puzzle with Fringe Benefits

(.puz and pdf versions are here)

(No solutions provided, just to make it more of a challenge for the solver, but feel free to use this blog to ask for hints if need be...)