Good morning fedi
I have finally made it. 3DS XL with USB-C
It is kind of a hack-job and looks the part, but it works. (There won't be any images of the internals, since I do not want to scare people or get bonked. There is glue and painters tape involved lol)
I had no Hot-Glue on hand so normal glue has to do it. Lets hope it still holds up
The case was botched pretty bad before anyway so I do not care how pretty much bad it looks. With more patience I could have done a better job but
Best thing: It actually works lol.
There is a downside. The pen does not really fit into it anymore. Rather it fits but it puts pressure on stuff which is... not good.
And I need to replace a cable for the shoulder-buttons (R and ZR) since I broke off the connector from the cable while trimming the case. at least thats easy, since its 2 screws really.