The best way if to put the mods it a custom.file, and a good program is Alchi's IMG tool, but if you don't want to do the hard work, just PM me the mods you want, and I'll do it for ya.
I use Crazy IMG Editor; practical, and easy to use. Its download link can be found here.
Guide on how to install mods (Using Alci's IMG Editor) can be found here.