Join Date: Apr 2007
Location: Oxnard, CA, USA
That's a custom seat, probably a Bill Mayer, cut down for a shorter rider.
If you can find the entire headlight bucket complete with the factory Xenon HID bulb and ballast, then you could probably switch to factory HID (you would need a dealer to update the software coding).
If not, then stick with the factory H7 Halogen headlight assembly, then upgrade that with an H7 HID upgrade kit (under $50 for decent kits).
Body panels are pretty much the same on all years, except for minor differences on the newer '09-'10 side panels. They can either be repaired or replaced as needed.
Others have already mentioned the known weak spots for these bikes (ABS, clutch, cam chain guides, fueling issues). Do some reading on this forum to get more details of those things and suggestions for repair/preventative maintenance.
Other than that, you'll just have to tear it down and see what it looks like under there. If the frame/suspension/wheels are straight, the rest of it isn't so bad.
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032
All lower 48 states plus Alaska on the K13GT in two weeks . . .
Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...