I searched the Irish Family History Foundation's database. It contains 12,000,000 surviving rcds for abt 65% of Irish counties. Rcds B4 1840 are sparse.
For James Hoey B 1843 +/- 1 yr in all Ireland, I found 6 B rcds: 3-1843 Louth, 1-1844 Co. Dublin, and 1-1844 Louth. None were in Meath. One of these MAY be for your ancestor. Even by 1843, rcd keeping wasn't that good.
Google the Foundation's name to lead you to this database. Register, opt to be notified as rcds are added and browse. Pls post your search results to my genforum msg.