If you want to see an A7 on Car SOS then you need to get in touch with the production team and suggest a suitably deserving case, typically an unfinished restoration project belonging to your best mate or family member.
Probably more importantly there needs to be a back story which is pretty formulaic. Typically: man (or lady) buys car with view to use/restoration; uses it for a few years, preferably in a significant way such as family wedding transport or major long distance travel; takes it off the road for complete restoration; starts restoration; other life events interfere, e.g. serious illness or family illness requiring almost full-time care, loss of job, whatever else; owner can't bear to part with his/her precious car and still daydreams of having it back on the road even though he/she has virtually no chance of completion, especially as after several decades of unsatisfactory storage the car is in a very poor state. Car SOS team secretly remove car from storage and completely restore it within 2-3 weeks, then return it to the unsuspecting owner in an undercover staged rendezvous.
There must be dozens of A7s with their owners that would fit this storyline. I don't know of any, but best of luck to anyone who can persuade the programme to take on a deserving case. Personally I would like to see what they do with a decrepit but bog standard common lwb saloon or tourer, especially with regard to keeping it looking original. Ulsteroids, Specials and such are less challenging in this respect.
CAR SOS have previously done a 1928 Austin 12 Tourer, and a c1940 Austin military truck. (see
https://en.wikipedia.org/wiki/Car_SOS for complete list)