Fishtits (what a name !)
You should have a chat with someone from SAAC (The society of amateur aircraft constructors)
http://www.geocities.com/CapeCanaver...7418/saac.html
Also check out
http://www.geocities.com/zodiachds/index.html
This is a site about a Zenair Zodiac build in Ireland. Although it looks like the builder hasn't been in his workshop in a while it should give you good info about the build process over here.
The National Microlight Association of Ireland now oversees the construction of some microlight types (including the Xair) much the same as the BMAA in the UK.
Homebuilding in Ireland looks to be becoming more popular and do-able, even if you have to navagate the IAA
mH