Definitely a suspension lift. Since you want 2" of lift, it narrows it down. The one thing I don't know about, but also would not recommend, would be spacers/combination of spacers & springs.
The only two true suspension options, at least available Stateside, would be OME or Dobinsons. I started with OME, both shocks and springs. Recently replaced the shocks with those from Dobinsons. Keep in mind that our vehicles really don't like to be lifted, and you may encounter alignment issues. If you don't have adj. cam bolts up front, you will probably want to throw those on as well. Cost for parts should be between $600-800, depending on sales, etc. There are a few threads here discussing lift options & I would suggest finding those and reading through them from start to finish just so you can see what is out there & what you will be up against.