Leeds-london Or Peterborough-london ( Azuma )

Would there be any possibility to add a Leeds-London, Peterborough-London ( AZUMA ) DLC ??

 

London - Peterborough is already out there and you get the 800 with it. You can get reskins into Azuma colors as well.
There's also an ECML merge which includes Leeds available in 3rd party so maybe google that and see where you get. A few requirements but achievable