You can price the kits from Stewart-McDonald (a tool and parts supplier for would-be luthiers) at stewmac.com, or do a search using the above name and "fretted instument tools". If you want to compare real world prices, go the elderly .com or search "Elderly" and "musical instruments". While slightly higher than real world prices, Elderly's has long been considered the "Blue Book" of most stringed instruments, and a good reference guide to their pricing. Putting your name on their catalog list (as well as First Quality instruments) is a good idea for your friend, just for gaining the knowledge of what is out there in the way of kits, specialized tools, wood blank purchases, and instrument repair parts. Good Luck!