The BR Class101 is the GOAT of the game. But the Pacer would the GOAT part 2. I've only seen it once on Train Simulator. If you can bring the BCC across from TS to TSW3. Then it's time. Pacer please.
Class 142 or 143 for TVL. Class 141 for NTP between Huddersfield and Leeds. Yes please DTG or any of the 3rd party developers.
Class 142 144 TVL and future Calder Valley Line Leeds City to Manchester Victoria via Halifax & Bradford Interchange