Strelitzia reginae, bird of paradise thinning replanting

Hiya, I'm not a gardner so speak slow =) My landscape was overgrown from many owners letting it grow, I've just about got everything cleared or cutback.

I think this is what it is, it has the grogeous orange like crane looking flowers. I have 2 of them, around 4 feet tall and with a wide spread, however like everything else around here they're both within

I want to keep 1 of these where its at and move another to another location as they're very crowded and I can't get in there to maintain/ clear out the dead leaves.

Is this possible? how large of a root ball/system should I expect? How do I do this? Can I then divide it and have multiple plants? how is that done?

Also I assume you do not prune these but instead just cut the dead leaves off?

Thanks for any information as I love these but I either got to kill one or replant it.

thanks! shawn