I think a non-audiophile would be very well served by the Bryston B-60, particularly since she has reasonably efficient speakers. The Bryston won't break, it is small and compact, and is an excellent all-around performer (there is even a version with a remote, although it would really stretch her budget). I had a Bryston 4B-ST amplifier for five years and have a Bryston MM phono stage in my second system -- solid stuff.
Good luck.
Good luck.