Window channel balance help

A quick learner from Reno nevada says:
I have a few windows that?s need window channel balance guides replaced. I need 10. All five windows are the same dimensions. One is broke with a number 2790-30, another one has a 2740. I weighed one windows when I took it out it?s about 27lbs. So I think I need the 2750 rated springs. The metal base is 28? long 1/2? wide. I?m looking at the 351 series. I think I need the 19-002 top and 15-002 bottom by the looks of it I will attach pictures. Just making sure before I order. Also the plastic guide/ removal clips are all gone is there a part number for that? I was able to use a screw to jam the balancer to remove it but would like the right clip.Thanks for the help :)
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Bob from SWISCO responded:

Thanks for writing in. So long as all your balance's dimensions match up with the S351-28, you should be good to go. Just double-check to make sure you shoe's depth isn't a bit bigger at 1-1/8", which would match the specs of the S390-28 instead!  For take-out clips, see our 16-002. As far as the plastic guide, do you by any chance mean a Top Sash Guide like here? If so, we'll need to see it out of the window, with 'mugshot pictures' of the front and side, along with dimensions. An undamaged version is strongly preferable. Many thanks.

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