Bigtreetech mix color adaptation for Sovol SV02

I wanted to equip one of my SV02 with mix color extruder but it was impossible to find the official one so I bought the "Bigtreetech mix color extruder" on Aliexpress.
Here are files necessary for the adaptation :
"Cart adapter" allow the hotend to be fixed to the SV02 cart. Use the 2 stock screws (the small ones that fixes PTFE to hotend) to fix it. Then use the 2 long stock screw to fix the Bigtreetech hotend to this adapter. You will need 2 M3 washers. They can be inserted on the holes above.
"Cover adapter" is very similar to stock one but a bit bigger to have enough space for the hotend. You can reuse stock screws to fix fans but you will need 8 M2 washers. Use the 2 stock M3 screws to fix the cover