Hey there, since he's a pup just getting started why not go with a self bow? If you have the space you could put together a shaving bench and a simple tool set: rasps a sturdy knife for scraping, maybe a drawknife.A good bow wud that won't test his strength so bad when he works it would be white oak. White oak is very reliable, doesn't need to be worked to one growth ring and it has pretty good elasticity. A good trick to clean the back is to scrape the bark off and steam the inner bark until it peels off. He doesn't even need to get fancy with a narrowed thicker handle. I'm not sure if I'm allowed by the moderators to point people to venders, but Mike Yancy at Pine Hollow Longbows sells top quality staves along with other cool stuff bow makers really need.