The unit bought was the 919. It's great I'm over the moon with it. As for import charges and tax, it was only minimal, we came to an agreement on the value if you know what I mean.
Since its a 200mm Toyota unit you don't need any fascia it fits perfectly. It was the main reason I wanted it. I'll post some photos tomorrow.
I can't confirm how/If AA works wirelessly. I use it tethered because I have an ancient phone (galaxy S7) but it's not an issue for me. The headunit has 2 USBs so I used one in the standard location then ditched the cigarette lighter for the other, my phone sits in the arm rest.
The Kenwood supplied harness plugs directly into the Toyota so no nothing needed, I have the fensport reverse camera and it connected easily to that too.
I can't answer the speed question either sorry, I haven't terminated the VSS wire to anything because I didn't think I needed it. You will have to terminate the handbrake signal wire to ground otherwise it won't let you use AA on the move. Just a safety feature I guess.
I'm not a fan of soft touch buttons but with the unit being designed for RHD cars they are on the right side of the unit which is ideal. Gesture control is a bit of a gimmick but i got it to work nicely for skipping tracks, no good for changing volume though. Screen being HD is crystal clear, you can't fault it probably overkill if anything. Boot up time is quick, 10 seconds at most and my reverse camera operates instantly as you'd expect. It's never crashed or stuttered and always connected both by BT and AA with no hassle. Hands-free is clear for both me and the person on the other end (I tucked the mic up the top of the a pillar). The DSP is fantastic, sound quality is excellent. One nice feature is screen mirroring, so you can havs full android on the unit by using your phone if needed (idea for torque pro).