Finish your probation (if you haven't already) whilst getting your PPL for about £7K of your £10K. Fly for fun for a couple of years whilst getting the Scottish equivalent of OSPRE 1 and 2, by which time hopefully there will be promotions again. Get through the sergeant process whilst saving for your CPL. When bedded down as a patrol or neighbourhood sergeant stay on shift and use your rest days for CPL.
That should get you to about 2017 with stripes and a CPL. You can look at what the airline industry is doing then and decide between staying in the job and flying for fun or going into aviation full time.
Or transfer south of the border and go for air observer in the new national (England and Wales) joint air unit.
Wish I'd done the above...