Hi & welcome to HC
Congrats on your getting Xuli, look forward to hearing more about her.
If you got her from P@H then she will definitely be a hybrid, they can look more like one species than the other but will still have the mixed genes.
You can really use anything for a the sand, it needs to be big enough for them to roll around in as well as have a good dig in, you can use a plastic box or a ceramic dish or these
bird baths work well!
Carefresh is fine to use as the substrate, it can sometimes be a bit dusty & some hams don't do so well with it but if she's ok with it then it's fine although
Fitch is a lot cheaper & generally better if you can get it.
The JR Farm feast isn't the best food tbh, you can get the
Bunny Dwarf HamsterDream Expert from Zooplus which is a much better food, a little low in protein for a young ham but a few mealworms a day will be enough to bring that up.