I agree with the above authors, but you need to turn your rod when you put epoxy finish on the guides, either by hand, once every 10-15 minutes to start and be ready to do so for about 3 hours, to be safe or buying a rod turner. Most of us use cork rings to build our split grips, but you can buy the ones that are already shaped if you don't have a lathe. You will still need to get a rat file and fit the hole to go on your rod. Take it slow, and try it often so they aren't to sloppy, you want a snug but not tight fit. If you make 8 marks on you cork, evenly spaced and file so many times on each mark, (say three times and turn) you should be fine. You can use masking tape under your reel seat, start at the grip side, fit your grip on it so it barely slides over. Make sure you leave some space for the glue to slide into next to the grip, 3/8" or so. then do two more with tape, each one fitted to the grip. Do this before applying epoxy. China markers are good to use to mark where you are going to put your split grip and reel seats.
When you start putting on your guides, i use small rings cut from model airplane fuel lines, You can buy short pieces in different sizes to slide over your guides, Small strips of tape work if you aren't planning on building many rods, Slice it up into 1/8" inch wide pcs. Latex tubing will work also to hold your guides, thin strips, 1/4"
Doesn't hurt for the first rod to draw a diagram, list your componets in the order you will glue them up. Epoxy holds real well, and once it sets you are stuck with what you have. (Rear grip, front grip, reelseat, small grip in front of reelseat if desired. )Clean up any glue or epoxy right away. Once its dried, to late. I use quick drying epoxy to make ramps in front of the cork for the thread to climb up, looks really nice, using a small 1/4 paintbrush. Sets quick, so you don't have to turn it long. Once you build one, it turns into a fever, be forewarned!!!!!!!
I build quite a few rods, so if you have building questions, you can shoot me a line Rich
richkendall@comcast.net
Wide river rods
PS: I am semi retired, (not lazy and old) therefore i fish, ALOT>