Griffith Valuation - Revision Books

I'm hopeful that I have located my ancestor's property in Martry, Meath.  I would like to check the revision books to follow the sequence of owners or tenants for this property. If I understand correctly, this can only be done in person at the valuation office in Dublin. If this is correct, could someone direct me to a local geneologist who I might hire to copy these records on my behalf?

Thanks

Brian