I won't rag about newbie framers who can't cut oval glass by hand, and 48" is a tall order. Now maybe in Florida, they need them new fangled computers and thangs but up here in the tall timber we just do it with a trammel plate and a plunge router. Now, on that 48", did you want standard allowance? and how deep of a rabbit did you want? My last custom oval was 78"x72" with a 7-1/4" depth. Any good cabinet shop can do the work Rick, it's just a matter of money. As for doing work for a church, it's been my experience that they always have about half as much as a grammer school. zip. Call In-Line and quote your client the price. In-lines widest that I have seen was only about 2-1/2" wide moulding, but the will do custom depth. Their frames just always look 'cluggey'. I make most of my own custome sizes by steam bending and lamination.
baer