800 or 1500?
What color?
For the 1500, the part numbers are...
Front fender:
35001-5053-I2 for red (for 2001)
35001-5054-H8 for ebony
Rear fender:
35022-5095-I2 for red (for 2001)
35022-5096-H8 for ebony
For the 800, the part numbers are...
Front fender:
35001-5055-L1
Rear fender:
35022-5097-L1
I don't know what color the 2001 800 Drifter was... I picked 2001 because I know that the Drifter was available in both 1500 and 800 that year.
These parts are in the $400-$500 price range (EACH), and it looks like that is JUST the fender itself... so if you are looking to convert an 800/900/1500/1600 to Drifter styling, there are still other parts you'll need, and the 1600 or 1500 Nomad will be a pain because of the right caliper on the front... not to mention the rear caliper will have to be remounted to below the swingarm (you'll need the Drifter caliper bracket).
A full conversion with factory parts will cost you well over $1000, and on the rear, the 1500/1600 frame is different and will require major surgery.
These are factory part numbers, so if the original parts were plastic, these will be plastic.