I think I'm going to try a dry transfer on one side of the loco and the decals I've already bought on the other. Then I'll have a good comparison. I'm leaning towards dry transfer because the alignment is easier and I don't want to mess with ink and the challenge of lining up a rubber stamp.
I wonder if the dry transfers now sold by Warnick are those that Janice Bennett was handling.
Now I have to get the right dark green from Train Enamels.