Wire is inexpensive. The major cost is in the end fittings that should all be replaced. Don't be penny wise and pound foolish, particularly on such a small boat.
By using your halyards to temporarily support the mast, you can remove one of the cap-stays to have two made up (they are--or should be--symmetrical so you only need one to have a pair made). Likewise the fore-n-aft lowers, one each at a time. With the masthead again temporarily supported with a halyard, the back-stay can be removed and a replacement made up. Most problematic will be the head-stay as you will have to remove it and the furling gear very carefully to avoid damaging the foils and then cut off one or the other end of the stay to slip it out of the foil assembly and have a replacement made up. To reassemble, you will need a mechanical end fitting such as a Norseman or Staylok and, if you have any question at all about your skills, it would be wise to have a qualified rigger do the replacement.Sounds like consensus here ☺ I can't actually recall the last time I saw 5 people agree on anything on SN. So I guess it is on to the further question which I have begun to research via other threads. How does one replace rigging at where cost effectiveness is an issue.