Back in 2002/03 Mail & TPO Trains was in the hands of GM Class 67 Today you take the 20:05 TPO From Cardiff as far as Birmingham .
Route XC Route – Birmingham to Bristol

Things you will need.

Armstrong Powerhouse
Baa Wagon Pack 01
Mk1 Coach Pack Vol. 1
Class150 Pack01
Class 321 Pack01
Class 142 Pack + MJW Velley Lines Reskin
Class 90 Pack
Class 150 EP
Class 43 (Valenta)/Mk3 Enhancement Pack
Class 66 Enhancement Pack
Class 67 Enhancement Pack
Class 168/170/171 Enhancement Pack
Sky & Weather Enhancement Pack

DTG
Class143 + MJW Revap
Class150/1
Class 67 Pack 03
HAA EWS Wangon

Just Trains
Autoballaster
Cargowaggon
Class 60
VGA Wagon
ZZA

RSC
Class 08 Pack 01
Class 159 Pack01
Class 66 Pack 03
Class 67 Pack01

S9BL Class 390
Thomson Class 170
Thomson WCML Megafret Wagon
Newbouy TPO

Right i Hope you enjoy this no dout i have forgotten something lol