Hi Gary.....Russell in Larbert......Calor in Grangemouth.......I think there is a supplier in Kerse Ind. Est. Stirling.......or phone 'Witches Craig' and ask where the nearest supplier is.
Murray Caravans past Airth is only about 8 miles away (about the same as Stirling).
They have a very small shop, just go into the reception chalet and ask, they're very helpful. But definitely have propane as we bought a canister not too long ago.
Alternatively, try The Woods caravan park at Fishcross, or Kingdom Caravans at Kincardine.