I need some help with ticket combinations.

Travelling from Totteridge & Whetstone (Zone 4) to Reading on Saturday and
returning same day.
I have a Networkcard and a Zone 2 - 4 Monthly.

What is the best combi of tickets ?

Was thinking Z 1 - 6 travelcard (£4.80) and then a return extension to
Reading (Not sure of price).

Am I able to get a LU Zone 4 to Reading ticket ? Any source for prices ?



Cheers for the help

Sam