Hello mate
Do you want the SRX seat unit?
This one:

(if this dont work, its in the photos section on the 1st page, without the race numbers at that point, and the "machine gun" from the front fairing

)
Anyway, Dimensions here:
Ebay Item number: 320169734686
How generous are you feeling? Or conversely, how poor are you?

It all goes to Team Thumper's 2008 season, so I was thinking 20-30 quid?? Is this offensive?!! What do you think? Postage shouldn't be *too* dear, but have no idea. It's not that heavy.
Actually, go for the lower end of the scale- its looking a bit 2nd hand,

with chafing on the inside from the exhaust baracket, and a small split on the opposite side. Doesn't really affect it tho, a bit of fastglass on the inside and it will be ok.
And your name of course will be on the 08 bike.

Cheers,
andy