Yep, time for all rope
Several years ago we found some "meathooks" in one of the original wire halyard sections on our '88 model. I replaced all the old wire-to-rope halyards with T900 or equivalent. I was also able to use 5/16 instead of the original 3/8 rope tails and they would hold in our stock clutches (barely).
Handling the line is much nicer than the wire. This also reduces weight aloft.
Do be sure that your sheaves are appropriate for line -- some boats may have double grooved sheaves in the system (we found one at the foot of the mast, and changed it out). I also removed and machined out the wire scarring in the metal sheaves at the top of the spar.
What with so many diffferent types of rope available nowadays with about the same stretch characteristics as wire, I see no reason not to change over. Do your hands a favor.
After all, no one ever really "wanted" wire halyards in the first place... 30 years ago it was just the only practical way to minimize halyard stretch when the sail was hoisted, without using humongous line sizes.
My .02 worth,
Loren in PDX