Since this kind of cable is not available through tesla (anymore) , i'm urgently looking for such a cable.
If you can buy a UMC somewhere you can build one yourself. That's how I did it three years ago. You need the special Roadster connector.
Easiest route is to buy a type 2 to type 1 cable and add a "can" adaptor to that. Maybe not the cheapest route, but easy to get with no modifications needed.
I agree. that's what I also did. this solution allows you to charge at any type2 station and also at tethered type1 stations
I also got myself a type 2 male to type 1 adapter, that allows me to pull 60 amps from those public 43kw stations with tetheret type 2 cable. Not quite legal (extention/adapters not legal to use on type 2) but it does makes long trips possible.