Chosen Solution

I bought a A7 for a very (very) good price but the low pass filter has been a little bit scratched ! (i knew it before buy it of course) Is the A7 low pass filter easy to change? I found the piece on ebay, but i don’t want to make a mistake. I am a french cad designer, and i may have some knowledge witch can help i hope? I can’t found a user manuel or drawing for opening this camera.. Thank’s for advance for your answer :)

I know a number of companies modify the A7 series of cameras, i.e.: Life Pixel, Hutech, etc. I’m sure they have all the original filters in a pile somewhere? bwa