Most female cats respond quite well to kittens. The main thing is how territorial she is. The more territorial, the less tolerant she'll be.

We had a farm cat once (feral) and she only spent two days hissing at the new kitten, before deciding to like the idea a lot. She was extremely territorial.

A kitten is going to be far easier to introduce than a full grown cat, way easier.

Good luck!

TTFN M'Lady P.