Hornby have produced this (as in Diagram 73 FO). Still no 'Raspberry Ripple' version though - despite being widely anticipated for 2022.
Also noting that the Maroon, Blood and Custard, and Chocolate and Cream Hornby versions were all fitted with BR1 bogies - the latter two liveries for this coach type would only be applicable to current charter operation as they were built post 1956. Therefore they should have been fitted with Commonwealth or B4 bogies.