Are they aftermarket hollow tube clip ons, or oem bars ??
That's a good question which I should have thought up before posting. If you have aftermarket clip-ons instead of OEM bars, the OEM bar ends may not fit.
From your picture of the parts, the #7 is just the end but it needs all the internals to mount up. The parts #9, #6, #10 and #8 all insert into the bar and your end weight #7 attaches to the damping pieces inside the bar with the #16 bolt.
If you didn't have all that stuff, you may not have OEM bars.
If you waited another week or two (but probably really a year or two if history is accurate), I'll have my RC51(s) all together and know if there are extra OEM bars and stuff I could sell you for about 1/4 of the costs shown on the form.
Just warning you that you may need more than just the #7 parts.