Hello Lorenzo, thanks for looking into my guide. In the section, "What you need" I have posted the name of the cable CoreParts Magsafe1 for USB‑C Adapter Cable Length - 1.8meter, White (MBXAP-MAG1-CABLE) . By typing this in google and especially the MBXAP... code it should help you find the product on several online shops.

To have a better view on this connection I have removed the metal plate covering the back of the glass. Its a thin piece of metal held by 9 screws. To unscrew the 8 screws you need the screwdriver head with 3 sides like the Mercedes Benz symbole. The last is with a phillips near the camera.

The stove top works well also. Remember, as the main instructions say, it should be slightly too hot to touch comfortably.

I recently had issues with removing the glass with the suction cup. I have done this many times with older generation iPhones but this time the glass seemed sealed on quite solidly. I told myself that the last option would be to use the screwdriver tip. After all my attempts, I transitioned to the option of using the screwdriver tip. Surprisingly, it was the easiest thing ever. I placed the 1mm flathead screwdriver at the interface between the glass and the cover (normal start location) and pried up very gently. Voila, the glass came up and I can’t even notice any dents or scratches. It felt much easier than the suction cup technique. If the suction cup is giving you a hard time consider using that 1mm flathead.