Asus firmware (kernel mainly..) customized for best routing??

[aind]

hello,
i just bought a Asus WL500g Premium router and im playing with it since yesterday. I managed to put 1.9.27-10 firmware on it but im a but dissapointed of its kernel bloatness so i would like to recompile the kernel to not support ipv6 and other useless functions for me.
how do i do that?
i have read the "http://wiki.wl500g.info/index.php/compilingcustomfirmware" page but seems buggy and a lot of things seem to not apply anymore.

so basically i would like to optimize my router's firmware to allow the best routing (without nat) environment for 3,4 PCs and 30-40 Mbit/sec traffic. qos enabled, maybe a very light webserver on the router..

any ideas or hints? a better place to read on?

thanks!

later edit:
basically i would like to:

1. eliminate options compiled in kernel which i dont need (and i would like the CPU to be used only at what i need to do, nothing more)

2. eliminate ipv6

3. install some few additional software..

so far i tried the howto at: http://wiki.wl500g.info/index.php/co...customfirmware
which unfortunately is very poorly written and very buggy and i got nothing after few hours of retrying, hacking, modifying, customizing, installing..

thanks.