Rollyson window top bracket #19-037 and other items

Looking to replace 2 sizes of window channel springs on Rollyson windows from the 1980's.

Have a total of 6 windows, but all that remain are the aluminum channels and what appears to be one top guide end as identified below.

Info is as follows-

1) 29" long, model 2830, top guide appears to be part # 19-037, bottom part is unclear.

Other than being able to identify the top guide, I was looking at S371 on your site. (Is this the best bet/)

2) 33" long, marked as BSI 32C. Same windows as 1 above except taller.
Do you have a best recommendation on that.

I plan to buy a pair to see how they fit and then order the rest based on the outcome.

Thanks.

Attached are 5 images. Unfortunately there is not much left to show, except the clear wing on what I believe is the top (rivets not spaced close together), and the broken pieces found in the window wells.

I assume if I buy a pair and the guides are a little too wide or deep, possibly I can file them off to fit and use whatever works to assist in any additional orders.

Thanks.