I'm no expert, but see
Flying Abroad as a starter.
You will need to file a flight plan and a GAR. You need all the documents listed.
Weston looks like they have their own notification procedures
Weston Executive Airport Dublin, Helicopter, Jet Airport Dublin, Ireland, Citywest Hotel I'd give them a ring ASAP to discuss what you're looking for (and to check with them you haven't missed anything out!
I'd probably also get very familiar with the Visual Approach chart (
http://www.westonairport.com/pdfs/vi...oach_chart.pdf ) and make sure I had up to date Irish maps. I'd also read up on the Irish AIP. You do know that there is not such thing as a "basic service" over there don't you?
Perhaps once you've gone, you could write up the prep you needed to do for others to use / critique?