If it's 5 paper pages,
you should consider AT LEAST 5 screens. Possibly more, since you can't get as much information/input area on a computer screen as you can on a paper page. However, that's a trade-off, since you don't want to confuse people who are familiar with the paper form.
Forms are very frequently divided into zones of related information, and those zones often map to different database tables. So you might find it convenient to front each of those tables with a backing bean and link the backing beans together (via managed properties) to form a unified form environment. Some people might opt for one big master bean to do the entire form, with possibly the zone beans as members of that bean, but that's up to you.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.