If he can lay out stairs, he could lay out the template. I agree Upscale, a
plywood template is the way I'd go. One of the repeat shows of the router
workshop that has been running lately on the Woodworking (
http://www.thewoodworkingchannel.com/ )channel is on this very subject.

"Upscale" wrote in message
...
"Woodsy" wrote in message
http://www.woodweb.com/cgi-bin/forums/aw.pl?read=459447

Maybe you can rent. (If you can find one that is). I'm wondering how
difficult it would be to figure your angles and then just cut a template
out
of plywood? A router with a caller around the bit and you're all set.
Double
the satisfaction for a completed job.