Beware of the rod building trap, Mike. Once you build one you won't be able to go back to buying off the rack.
I started building my own rods 30 years ago, ended up making my own wrapper, graduated to a two speed dryer from a McGyvered rotisserie motor, bought a lathe to turn grips, etc. and have loved most of the rods I've done. I did buy an RTW from Bob Meiser last year, as I wanted a memorial rod in memory of my Dad and I'll never be in Bob's class of finish work.
You'll find grips, seats, guide, guide spacings, etc that you just can't find on commercially built, mass market rods. you will be surprised at where they cut corners, and won't be happy with them after that. Plus, the variety of quality blanks far outstrips built rods, and the cost on many of those blanks allows for really good quality components on your own build that will still cost you less than that off the rack product. Rodbuilding.org is a great site, with a lot of builders that are just as free with help and advice as the gang here is. Have fun, and enjoy the journey!