Have a look at a late twin cam. Good power gain over your current GS and will do everything a newer one will do in real world conditions. They are proven, very reliable and if you get a Hilltop ECU upgrade or a set of AF-Xied units you will be surprised just how well they go.
This model GSA has also been voted as best bike by Ride magazine in the day. It has the best wind protection of all GS Adventures produced. Perfect if you don't want wind on your arms. Seriously.
Or London prices for fuel as well , like gold down in the smoke it be.....
