I have been building and repairing rods ever since I read the articles on Rod Repair and Building Cane Rods in the MCCLANE'S STANDARD FISHING ENCYCLOPEDIA that my dad bought in the 60s. This was the last word on fishing references at the time, and is still available today.
There have been many, many articles in outdoor magazines on the topic of rod building/rod repair, and many small pamphlets. The best book that I have on the topic is How to Make Your Own Fishing Rods by Mel Marshall.
Although a 1978 book and really is not totally up-to-date with all the newest stuff, it is still the best book.
Over the years, I have built my own jigs and components; the only thing I have purchased is the 110v motor to drive the rod drying after application of epoxy. This is really necessary to avoid sags in the finish. I would recommend a motor under 10 RPM for this: 5-8 RPM is ideal. This allows you to spread out epoxy finish while the rod is turning.
The motors are easy to find on eBay; just enter Dryer-Drying Motor in the search engine.
I buy my components from eBay, guides, tiptops, thread, rod epoxy, cork rings, etc. I also save the good guides from rods that I have been given for repair that simply cannot be done. I also save the useable rod blanks from these rods for future repairs.
I build 1-3 rods per year, and repair as many as 20 per year. It is somewhat addictive, but a very satisfying pastime.
I can go on at length on what I have learned, do in specific situations, etc. Ask specific questions if you have them.