What a wonderful life she had. You were both lucky to have had each other. So sorry it wasn't for longer.
I worked in animal hospitals and think cremation is a great idea. Snip a piece of her fur to keep, if you like. And if you need to, give the UC Davis School of Veterinary Medicine's
Pet Loss Support Hotline a ring. Being new in LAS, they may be able to recommend a reputable vet office/cremation service. Or tap the regular LAS folks for info. (Not sure any of them have pets though.)
Hang in there.