The C14 shock is much longer than the stock C10 shock and is also longer than the ZZR shock and unless you are really a leggy SOB your going to need to also find a Lowering Rocker to go with the install.
The mounting bolts used on the C14 shock are smaller than the C10/ZZR shock by some 2 mm; the lower mounting fork on the shock is easy to drill out so that you can use the lower mounting bolt and spacer (?) from the ZZR. Most who have done the C14 shock install have simply used the smaller upper mounting bolt through the frame mount with nothing more than a flat washer on each side of the nut & bolt; this works fine. Both have the same style of remotely mounted adjustment reservoir so that requires only figuring out where you want to mount it at and at best an L type of mounting bracket.
I can vouch that the ZZR shock is night & day better than the C10 shock and I'm told that the C14 shock is night & day better than the ZZR shock.
I just did the C14 rear shock conversion a short time ago and I don't know if I would feel safe drilling out the lower mounting fork on the C14 shock to work with the bolt from the C10. The width of the C14 lower mounting fork is smaller than the C10 shock and on the side you would have to drill out the larger hole for the C10 bolt it won't leave you with very much material left on the sides of the hole.
I chose to have a custom bushing made and use the nut and bolt from the C14. The bushing is the same I.D. and length as the C14 bushing, with the O.D. being the size of the C10 bolt.
Here's the link to how mine went
http://forum.cog-online.org/index.php/topic,27617.0.html