ACE Coach Roof Destination Board

I'm in the process of assembling a representative ACE train with Merchant Navy Pacific and Bachmann Bulleid coaching stock and wanted to add roof destination boards to the coaches. Each coach has provision for four boards, two each side positioned centrally. My research thus far has been inconclusive. I have the impression that there was no hard and fast rules on the use of ACE roof destination boards. Train images show either two boards side by side, one board or none at all! The boards have straw lettering on a dark green background. Legends: "ATLANTIC COAST EXPRESS" either on one board or across two boards, possibly with the word THE preceding ATLANTIC. "WATERLOO TO ILFRACOMBE" and the other destinations BUDE, TORRINGTON, PADSTOW, PLYMOUTH, EXETER CENTRAL and WEST OF ENGLAND. The latter for the East Devon destinations of Seaton, Sidmouth and Exmouth. I have surveyed hundreds of southern train images but yet to find an ACE showing any of the boards with discernible lettering. I am making my best guess as to what to place where until a photo turns up. In 4mm scale I made boards using MS Word and the font Vrinda 8pt. Printed on sticky back labels 43mm x 2.5mm. Two strips of 1mm high x 1mm thick plastic card were applied to the sticky side top of board for rigidity. The board is positioned on the coach roof between the board end brackets and pressed onto the rain gutter where it is held by the label glue showing on the bottom of the board. The board can be easily removed when the coaches are used on other duties and reapplied when forming the ACE, so long as the stickness lasts.