Simply do a search using Google of "rod building supplies" and you will find a multitude of suppliers. Prices for rod dryers, rod wrappers, reamers, files, etc are pretty much the same (for the same level of equipment) regardless of who you buy them from. Likewise rod blanks are priced by the blank manufacturers and they run from around $40.00 to $500.00 depending on material, type, and length of blank.
I recommend that he get himself a copy of a good rod building book as a reference and that he read it before he even begins to buy the rod building equipment or blank and accoutrments to finish the rod. The best books are by Dale Clemens and Art Sheck.