Balance for Simonton Window

I have a Simonton single hung, dual pane, vinyl windows that needs a new balance on one side. Per my warranty paperwork, I believe the window is the Dimensions II model, circa 1996.

From the broken parts, it looks to be a triple spring type, and the [barely] visible markings on the spring next to the shoe appears to say MEGA 6.5 33".

Photo of an unbroken balance is attached.

I also need new weatherstrip for the bottom of the sash and do not see anything like it in your online catalog. It seems to be just a rubber flap that fits into a track in the bottom of the sash. Photo attached.

Found a patent number on the shoe: 4,610,108

1/2" is the coil spring width, but I need the entire spring assembly, not just new springs. The spring mount & housing cover broke as well as one of the springs. The shoe I have is actually still ok, though I would prefer the complete assembly for simplicity. If you don't have the balance assembly as a unit, what parts do I need to mount the spring, including a cover for the mount? It looks like that piecemeal I would need the 160 springs, a mount bracket, and the cover plate for the mount. I'd probably get a new shoe as well, to have all new parts.

I've attached a photo of what I have left besides the shoe itself.

On further examination, I see that one spring is labeled 5.5 33" 130-494 and the other 6.5 33" 290-156. So I guess I'll be needing two different springs, a 6.5 and a 5.5 of the Series 160.

The 15-150D looks workable, but I don't see a cover or retainer to cover the springs and hold them in place. Do you have such a thing for that support?

OK, thanks. I'll order what I need later today.