It's always a sever mistake to try to put it all on one page.

The human mind can only hold and access small chunks of info at one time.

A good reference book always has an index, so please consider breaking the content up, and moving most of it off the front page.

If you want to look at how a very large site can be organised to be accessible thru indexes, feel free to look at mine - the url is on my Mudcat profile page. You may not like the content, but it is the way it is set up that may help you to think about organising your site.