East Fortune is a microlight strip. The long runway to the east of the microlight strip is usually out of bounds. It has car boot sales at the weekend. Someone feel free to correct if this is not up to date.
Fife and Cumbernauld will charge you about a tenner, possibly a little more if you are staying overnight.
Fife will discount a meal at the Tipsy Nipper if you uplift fuel, or at least they used to.
Cumbernauld is your best bet if you are coming from down south.