In fact, it's not more difficult to install gentoo if you start from a stage 1. But it will take a lot more time. If you look at it, going from stage 1 to stage 3 is just executing the bootstrap script and issuing an "emerge system".
The big difference between gentoo and lfs install is the way you obtain your base system :
With gentoo, you just execute the bootstrap script, or you start with a stage 2 or 3. But with lfs, you will have to compile all of that by hand. But once you're there, you have to configure nearly everything by hand.
Also, gentoo has a great package management system (emerge - ebuild) that do not exist with lfs (AFAIK)
And for the question "Is it hard enough?", I want to say 'no!' :
The gentoo web site has an awfull lot of documentions covering nearly all topics for a standard linux system. That's what makes it great! 
I don't think that with lfs, you will get all this stuff centralised in one place.
Anyway, both are great to learn and understand linux...
HTH
Flupke |