Halyard and Jib Sheets

[Jhildy]

Hello All, my first post as I am in need of advice. I have a '91 Hunter 35.5 Sailboat and on a large Texas lake. I have a 130% continuous line jib furler and the Main is a standard hoisted variety (not a Mast Furling system). It's time I replace the Halyard and Jib Sheets. What recommendation do you have for:
1. Type of Line to use
2. Good place to buy the Lines
3. Diameter Line to use
Thanks!