Want new guages

I found some new guages that i want...its just a guage face, but how would i install it? Could I do it easily without knowing anything about that whole area or should I take it somewhere and get it done? Here they are in case it matters.... http://www.procarparts.com/store-detail.asp?sku=FD99MT%2D8057RGX&dbname=onlinestoreDB Thanks!!