I did a similar thing for my H26. I ordered a mast sheeve blockand installed it in the mast above the headstay. The block installed from outside and was installed with 6 screws. On the bottom of the mast I installed a mast exit plate and a new cleat. The halyard was then run internally. On the stern, aft of the cleats on each side I installed a diamond padeye and a turning block. That is all you need for a cruising chute, you will need rigging for the spinnaker pole for a conventional spinnaker. If you go the a~sail route, I would recommend getting an ATN spinnaker sleeve and a Tacker tack strap. I used this setup for 12 years and it worked great.