The idea that these are pretty much nonexistent honestly blows my mind.

Imagine if, after many years of the current design, some car manufacturer decided to orient the steering wheel sideways, and also redesigned it so it looked like a wheel and tire -- and then eliminated the brake pedal and modified the accelerator so that you had to hook your foot under it and pull up to pull down. Inexplicably, the entire industry follows suit, until at some point there is only one car on the market with the controls we all know today -- and it's a Tesla Model Y. Expensive, weirdly proportioned, tons of unnecessary bells and whistles, and pretty much nobody has one.

I found a used, very nice condition 3GR 2.4 on eBay! It wasn't cheap, but it was less than a 4GRS. With receiver and two servos.