Uk Routes I Wish For

Being from the North East of England there are plenty routes worth doing.
East Coast Mainline between Newcastle - York (Dovetail have this as one of first routes they did in Train Simulator Classic).
East Coast Mainline Newcastle - Edinburgh
Newcastle - Carlisle
Carlisle to Preston Cumbrian Coastal around lakes.
Heritage - North East Moors Railway Pickering to Whitby going through Goathland (Harry Potter station) & Grosmont.
Tyne Wear light rail Metro System

Then trains I wish for:
Class 91
A4 Mallard
Class 156
Class 220 Voyager cross country

 

Good suggestions. Particularly keen for NCL -> YRK, TW metro, 91, and 220/221

 

Route hopping would be cool at NCL across to the TW metro

 

Settle and Carlisle Line would be my first choice, as would a 1960s-70s-era ECML section with Class 55 Deltics.

 

I wish we had longer end to end routes and i want something truly rural and rugged.