77-78 Rear frame sections, under seat

Can anyone provide a scan or show a picture of the rear frame where the seat plastic mounts?

My reason: I want to try the rear plastic from a 1977-78 KZ650, and mount it on my 1981 KZ650 CSR under the seat. To give it a sportier tail. Possible?

Here's some pics of my '78 650C2 and lower my '79 C3's frame, which are the same. My two main frame rails along the sides of the frame are straight at the same level front to back. Does not the CSR's frame rails have a step in them?
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Another: You can see the 2 mounting bolts at the rear end as well as the 2 just above and to the rear of the shock mounts. These are the 4 mounts for the tailpiece.
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Post edited by: rstnick, at: 2005/11/24 19:49

another:
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There was a Green SR (D) model with pics on the forum a while back that had a tailpiece added. I don't know how much difference there is between the B C, D (SR) and CSR frames.
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