Coach from Pompey harbour to Heathrow via Southampton,Tube to Osterley,Nip in the Osterley Hotel for a swifty,bus to the ground just down the road.
Back to the Osterley for a curry,now has a great Indian restaurant attached or you can eat in the Pub bar.
Decent Pub attached not like a hotel bar area.
I used to work there years ago,will be good to see some old faces.Quite cheap to stay even if you fancy a night in the west end.20 mins into Piccadilly Circus.