Built this from another thread: (
http://www.flyertalk.com/forum/milea...08-rt-all.html)
If you go here -
https://www.google.com/flights/?sour...-LGWOAK0BA2279 - and click through to BA site to book.
Then select "change flights", opt for WT+ for $442 e/w.
The connection from London Gatwick to Jersey tickets into Club Europe at full fare for some reason, thus 40TP e/w in addition to the 90TP e/w for 260TP total.
Can't see what the fare type is, so not sure if upgrades are possible with Avios.