I regret that I am unable to offer a custom / bespoke transfer service - the research involved is simply beyond the time available.

Apologies if this excludes your pet project;  I am, after all, just a fellow-modeller who can print transfers. I must keep some time for my own modelling!

Railtec https://www.railtec-models.com/ and Precision Labels http://www.precisionlabels.com/ may well be able to assist you with projects that require one-off transfers.