Dave
Slaters are now offering a coach printing service, I've just received the sides and ends of my all third S9 in the pre 1906 livery and it's fantastic it includes all the necessary transfers and coach number all for £60 and is worth every penny. All you'd need to do is join the 2 sides together and send them off.
Laurie Griffin does a set of cast nickel silver jointed rods for your 2021 that you may want to check out. Looking forward to seeing Sherton Abbas at Telford.
HTH
Malcolm