Welcome Gerald! Go to
http://www.hobiecat.com/support/index-sail.html for sailing tips, product info, and parts catalogs.
You didn't mention where you were stationed. If you're on the ocean there's a good chance you're close to a local Hobie Fleet.
JOIN!! The first time you show up for an event and identify yourself as a noob, you'll get swarmed with help.
You should get a jib. I'm pretty sure Rick carries them here. Mast rake is a question without the jib as the cable that you now have for a forestay may not be up to the job strength-wise. The jib does have a heavier cable in it.
Good luck and have a great time!