Not another F1 issue post. Calling flash32

I recently purchased my dream 360. Part of why I purchased it was because the clutch and basic F1 things were taken care of.

I tend to use my cars as intended and a few weeks into ownership I had the gearbox light come on during a spirited drive. It was intermittent and eventually turned into the hydraulic system not actuating with the door or key. I pulled the relay out, smacked it to free it up and was on my way. I purchased the Scud Ing relay to avoid future headaches.

Unfortunately it seems to be a multipronged issue. I drove the car and had the light come on after the car got hot. It would go to neutral when shifting into higher gears at highway speeds. The problem seemed to be more prevalent at higher rpm.

I pulled codes, cleared, and test drove to see whether the codes would come back. Unfortunately they did. The car had the following codes most recently:

P1710 Clutch Position Sensor
P1741 Engagement Potentiometer
P1772 Opposite Gear Engagement
P0600 CAN Error Cod
P1760 Brake Error

When I pulled codes after the first issue it also had:
P0720 Car Speed
P1775 Gear Release Failed

Clutch, Hill t/o bearing, & Clutch Position Sensor replaced under 5k miles ago.

After replacing the relay I have purchased an accumulator, actuator position tool, and just purchased the components to make Gear Position Sensors (thanks to an Fchat post). I'm about to order a speed sensor and brake switch for piece of mind. Is there anything that I'm overlooking or should check? I tried to message Flash32, but my account may be too new to send a PM.