Yes, that is a Jupiter SD.
The set looks to me (based upon the info and pics given) to be 1978 or 79. By 1980 there were some subtle changes in the hardware. Could be late 77, but IMO more likely 78 or 79.
Also... a 14x14 FT shell is hard to find. They're all keepers, but that one is special!
I need to get pics posted of my latest project. It will be a rewrap, as it's composed of mostly orphan shells (some solid red, some white, some black, and some bare). The hardware I have is all 78 or 79. 1-14x24, 1-14x22, 2-16x16, and for the CTs I have 2-14x16, 2-12x15, 2-10x14, 2-9x13, 2-8x12, 1-5.5x8. So, I'm needing the 5.5x6 and 6x10. So, if anyone reading this has them, I've got plenty of shells, etc. to trade. I've been wanting a Pearl FG "octa-plus" set since the lates 70s. Getting close now!
BTW, I don't have a Jupiter SD, either... but will again someday. :)