Logged In: NO

As near as I can tell from attempting a build, the kernel
defaults are all set by altering the 'defconfig' values of
the kernel source with various of the patch files: this
does not permit dynamic shifting of the settings of the
kernel, but does allow somewhat easier .config file
creation in order to compile the kernel.

Try making a new patch file and kernel bundle that includes
your variants by altering the defconfig settings: you'll
also need to update the CONFIG file appropriately, to add
the new patch.