This may be a bit off-topic, but I will never again have someone other than myself install passenger-side pedals in ANY car. Without experience doing what we do, the results have always been disappointing. Every time, and I mean every time, (about 12 times for me) I've had to at least tell them something that needs correction, (several hours more of labor) and I've ended up paying for at least 8 hours of labor.
In the past, I've had others do it just because I don't have a lift. Well, it can be done entirely from inside the vehicle with a variety of hardware which inserts from inside, or with the car on a jack. (Be SUPER careful getting under a heavy Tesla.)
The most common two errors they make are putting the driver-side pulley too low making it "barely effective", and placing the passenger-side pedals on the floor , or close to it, instead of the firewall, such that I can't use the pedal with my heel on the floor. (Careful not to pierce the battery in a Tesla.)
As WE all know, the cables need proper tension, they can never bind, they need to be capable of a full range of travel, and the pedals need to be well-placed for instructor comfort, ease-of use, and the ability to respond quickly. My goal always is that it feels the same on both sides of the car. With a good drill bit for steel, a socket set, vice grips and other common tools, plus at least one full day of tinkering I can do it in my driveway or garage. Just because the person who does the work can tune up an engine or weld, that doesn't mean they're mechanically inclined such that they understand leverage, pulleys, and the angles we need.
And you're right of course, finding someone who will do it is challenging. Regular mechanics avoid it for fear of liability, but I've had better luck (although still always disappointing) working with people who lift trucks or work with sand rails or dune buggies.
Two good products:
Passenger Side Brake | Tarsus Driving Equipment | Rural Letter Carrier Kit For these I find the pedal arm is too long, so I have a welder shorten it. Also their electronic accelerator pedal is a good concept, but they made it do "special electronic tricks" which I found detrimental and confusing to the student, and those "tricks" are redundant with what a Tesla does on its own. (If the instructor applies the accelerator, the driver's accelerator is disabled until both pedals are fully released. It sounds good until you get it in the real world, trust me.)
Home Not as well made as the Tarsus system, but simpler to install because the pedal arms are shorter. With this I've had cables fall off pulleys because this system doesn't keep the cable under constant tension, unlike Tarsus.
