The crate is fine, just work her up to longer time periods. Example, feed, potty break, play potty break, when she is ready for a nap, use the crate. She will associate it with comfort and relaxing.
If you use a pad in the crate, she will think its ok to go there, and will be something you won't want later on. The pen would be ok to use the pad for emergencies, but again its best to take them out to enforce potty training.
Be patient with the training, she is a baby, though you can start basics like sit and here now.