Following the general trend for the other solutions, i think this solution is probably quicker. Throughout a normal playthrough, you may get True Jedi on a handful of levels. However, if there are any that you missed - you can turn on the multipliers (2x, 4x, 6x, 8x, 10x). This gives you a whopping 3800x-something per-stud.
Now, start up any level, collect one or two bricks, save & exit - True Jedi for the level. No need for invincibility and, more importantly, no need to play the entire level.
I ignored all True Jedi goals on my playthrough & did this in less than 20 minutes after clearing the game