True Jedi Story - 75 000. As you have a Jedi in your party, you shouldn't have too much problem here. Just try to control Ben most of the time and you'll be able to see more stud-collecting opportunities. Notice that you can destroy the swamp-drying devices once you turn them on with 3PO, and then use the Force on the flowers that appear.
True Jedi Freeplay - 120 000. Don't skip any secret areas mentioned by the minikit descriptions. Besides, there's an interesting room just by the entrance to the Sandcrawler - you'll need 3PO to access it. You can play with a TV in there and build a yellow device to the right. All pays well.
Power Brick. Do the following.
At the very beginning of the level, find a passage shown to the left. It's near the Banthas, you just have to head down the screen. Float across the hole as R2, and then blow up the junk with a detonator.
Form the three metal bricks into a tower and use it to reach the platform shown on the screenshot. It's difficult, but can be done. Now switch to R2 and hover to the left. Push the wagon.
The wagon destroyed the door blocking the way to the power brick. You can now easily get it after following the tracks.
Use the Dark Side on the door at the beginning of the level, just after crossing the first abyss. When you're behind it, use the Force on the bomb in the wall, then shoot and force-detonate another one. Now you can reach the minikit.
As a blaster character climb to the upper level of the ravine near the door to #1, and then as R2 hover to the left. Now switch to a small character (ex. Java) and use the tunnel.
Head to the secret area where you got the power brick and stand at the spot shown on the screenshot. You now have to hover to the minikit - it's not easy, you'll have to be very accurate.
When you get on the roof of Sandcrawler use Detonators to destroy silver things on the back of vehicle. Then two players must stand on the two spots. Entrance to the tunnel will appear. You can enter it with small person.
This minikit is fairly easy to get even in Story Mode - it's in the room where you've found R2. Just push one of the crates into a marking in front of the minikit.
In a room with a furnace use the Dark Side on the grid shown on the screenshot. Switch to a small character and use the tunnel, then use the Force on the valve. Now you can use R2 to hover across the lava.
This one can be noticed easily near the swamp-dryers. Just use any blaster character to grapple up to it.
Near where you found #7, use the Dark Side on the object shown on the screenshot. You'll see two buttons there. Place a Bantha on the bigger one and stand on the smaller one. Minikit will be yours. Also, there's a lot of studs around here.
You have to jump on a platform shown on the screenshot. It's a little bit further from the bridge you built. To get there, you'll have to jump from the higher level of the ravine ahead.
In the last area of the level you'll see a minikit on the rock in the middle of the swamp. Just go there with your speeder and build a grapple point, then use it.