I have been to Fairyhouse Racecourse Market, Co Meath recently, I found it great, they have a section specifically for carboot sellers, you need to call the office on a Thursday morning to book your car/van in for the Sunday market, number is 01 8303808, office opens at 10 o clock ... it costs 25 euro for your car not sure how much for a van... no connection to this market just a satisfied customer...