Looking For A Route I Can Use Ap 319 Dual Voltage On

i am looking for a route that has both third rail and overhead lines on the same route so i can use my class 319 to switch between them while running i just want to know which route to buy that has these features...

 

North London and Goblin

 

ECML London - Peterborough but only at one station (forgot the name) so you can't drive on 3rd rail, but you can switch to overhead wires and use them.