FS: CB750 Rear Sets

Long story short, I got these off ebay and had them FedEx'd down to
Dallas, but they won't work for my '71 CB750. Seems I failed to READ
the auction description regarding what models they are for...

From his auction:
"This is a NOS set of racing rearsets for FA, FB, FC, FZ CB750 models
(May fit others, I am not sure). They are still in the original box and
come with the requisite mounting bolts(not shown).This a modification
you can ad to your vintage Honda that will add value and performance as
it is a period accessory designed to allow a more aggressive riding
possition on your bike while maintaining comfort and control. Rearsets
are sold as is in NOS condition. Rubber is fresh and not cracked and
aluminum is bright. Enjoy."

Yeah, my reading comprehension skills must be off to have read K1 into
that somewhere...

Anyway, the metal is good, hardware seems to be all there, rubber is
great, seems to be a nice setup. NOS Daytona box is thrashed, but even
has some old stickers in the box. Also includes a one page diagram
(appears to be a copy of hand drawings), with notes in Japanese,
regarding installation. All it says in English is "CB750 F2, A, B, C).
No year is notated...

Pic @ http://www.motolobo.com/forsale/rearsets.bmp. Additional linkage
and hardware not shown, but included. Sold as is, but everything
certainly appears to be complete.

$225 (what I bought them for), plus $15 insured FedEx shipping anywhere
in US. I can take PayPal, cash, or credit cards...

Need to sell to fund my hunt for proper ones for my bike. In Dallas...

Jeff