Your money is probably best targeted toward getting her a variety of samples, which would be fun for your mom to experiment with.
You may already know that if you're in the U.S., you can get up to 10 samples for $2.99 each from http://www.perfume-worldwide.com/try-before-buy
Your suggestions seem to be along the same lines as your mom's preferences. Good job! If she likes coconut and mango, I'd add Chopard Casmir to the sweets list.