Just get a new set from saltydogmarine.com its like 90$.
Word. If you don't have experience in making thimbled eyes in stainless wire rope - and making them the right length repeatedly, this job is best left to guys with the proper equipment to do it. The fact that you had to ask what the standing rigging was made of gives me a bad vibe.
The quality of this job bears directly on whether your mast stays up or falls down. Mast falling down is bad.
The original Hobie 14 standing rigging was 3/32", 316 stainless, 1x19, uncoated wire rope.