I am in the process of putting a N fender on my 02 R . I'm using the R fender struts and inner fender bracket and turn signals even the seat from the R will work with a little bit of fitting to the N fender. The N fender that I purchased from e-bay did not have any lights with it so I had to invest in the lights and licens plate brackets and lights and all wireing for the lights. I found out those items can get a little pricey. You may want to check with your local dealer to get prices on the lights and wireing . I know the extra parts I needed ran about $300.00 . I know I'm working with a different model then you . But you may be able to use your seat and fender struts. there are a number of guys who have done the same swap you are working on and I'm sure they will give you a better idea of what they had to do. Good luck.
A major difference between the C model and the R/S/N models
is the distance from one bolt to another in the chrome fender struts
The two forward bolts are spaced the same for all models.
The rear bolt is about 2 and 1/8 inches farther back on the
R/S/N models than on the C model.
The inner fender support has threaded holes spaced the same as
the bolt holes in the grabrails, so the inner supports need to
be changed to match the fender, the grabrail and the seat.
The grabrails for the R/S/N models are at least two inches longer
than the grabrails of the C model.
The seat on the C model (including the passenger section)
is also about 2 inches shorter than the seat for the R/S model.
It is possible to mate the Retro fender to the C model seat,
grabrails and inner fender support, but it requires drilling holes
in the fender and some other modifications.
If you are a perfectionist, the fit of the modified parts is
less than perfect.
It is hard to see the less than perfect stuff on my bike because
most of it is covered up by luggage rack, saddlebags and trunk.
But my bike is a C model with Retro fenders ONLY, no other
You would be surprised how many Retro owners have asked me
how they can fit a stock Honda C model seat to their bikes,
because they prefer the looks of a rectangular pillion pad over
the touring style passenger seat of the Retro model.
But really, the C model seat would be too short to fit their bikes.