There are some good resources to look into. The Writers Guide is excellent for these type of projects.
http://www.rovang.org
Power Rangers Central and Naks Power Rangers are great resources. They have good episode guides.
http://rangercentral.com,
http://nakspowerrangers.com
Of course there is my site which is similar
http://powerrangersonline.com
As for actual battles I'll have to think about that and post again.