I'd get a single. Aire Lynx, Tomcat, or Sotar if you really want the best boat. I've paddled all of them, for me the Lynx does 95% of what I want it to well, the Tomcat is a good value, but the Sotar SL's are the best. I could get a custom Sotar SL and never want for another IK again. Saying that, if it is her first boat, the Tomcat is plenty. The North Umpqua is great, I took a new to me Lynx down it last spring from Boulder to Gravel bin, it was great.
Wishing I was on the river instead of surfing the web...