I agree with the recommendation to get the camera with the 2 kit lenses. Many of us on this forum (including me) started with kit lenses, and the two lenses included in the kit are fine lenses. As Mtngal said, the L version of the 55-300 is optically the same as the non-L version. The non-L version is somewhat sturdier, but unless you plan to do a lot of hiking or other activities where the lens might get banged around quite a bit, the L lens included in the kit will probably last for a good long time.
It probably doesn't make a lot of sense to start building an extensive (and expensive!) lens collection until you know more about how you plan to use the camera, and which photographic "specialties" appeal to you most. Once you know which areas you want to explore, you can look into lenses designed for special applications such as macro, ultra-wide angle, very wide aperture, etc, etc. etc.