From this LINK, you can purchase the Kodachrome LUT made for Panasonic cameras. This item has two versions of the LUT (709 and V-Log). Although these are made for Panasonic, there is no instruction for installing specifically for Lumix cameras. What I tend to do is load them in the tagged format. In other words I create a V-Log profile and load the V-Log version and the 709 for rec709 profile. I also stack these particular versions to achieve a bit more contrast.

Recipe

1. If you haven’t installed a 3rd party LUT, see my article on how to set that up.
2. After purchasing this LUT, download and uncompress the files within. There will be a 709 cube and a V-Log cube file.
3. Drop the files onto the root of your SD card and put the card back in the camera.
4. From the LUT Library bring in both the 709 and V-Log cube files.
5. From Photo / Photo Style menu, change your profile setting to V-Log
6. Set the grain to LOW.
7. Scroll to the LUT 1 option and click the LUT button on the back of the camera. Choose the V-Log cube file you loaded into the camera. Leave it at 100%
8. Scroll to LUT 2 option and click the LUT button on the back of the camera. This time choose the rec709 version you loaded into the camera. Leave it at 100%

If the lighting feels to dark, you can adjust the exposure values before saving it into a custom preset.