I use Palletline all the time at work .
We pay about £55 wit out frequent flyer discount .
The problem you are up against is not the distance , its the fact its Scotland . There might be a surcharge . If its a std 100 x 120 x 150 , weighing less than 1 ton you should be ok
Try Palletline , ask for a 3 day economy service ( if its not time dependant ) Always better to send on a Monday , for wed / thur as things get damaged with extra movement with ‘over weekend’ stops.
Alternatively find a big haulier near Fife and get a price for a ‘Back Load’ only really works if there is a sensible time window ie 4 -5 days . Can be extraordinarily cheap.
HTH