Q="In response to re-partitioning, I have been following the guides of a friend, how to I do this "without" losing everything I have built and compiled so far (it has taken 2 days lol)."=
You will not lose anything if you back up your kernel and other important files into a separate partition. You may do this by booting from Ubuntu and use it to copy files <importing your files from Gentoo partition> before you will restart to install gentoo.
Your hardware platform is more than enough what is required under normal linux systems, I don't know the reasons why you need recompile a kernel. Just use a default kernel of that distribution for the purpose of test run.
I only have 1GB of ram but honestly I have no problem running the "HUGE" precompiled kernel of Slackware without an initrd.gz.
However, the way I see it, your problem can only come from two (2) possible causes:
--Your kernel compilation went bad somewhere so you have to use another (there are precompiled kernels for gentoo, just download some; use google); or is there an init script? in this case you must reinstall;
--Or that, grub/menu.lst entry did not match the accurate location of your gentoo kernel; in this case simple trial and error fixing on the kernel line of the menu.lst will do the trick.
hope this helps goodluck