Things are moving right along.
Here is information about how I designed the body mounts.
Here is a look at the rear body mount. I need to make a change to the rear of the chassis rails but the mounts are perfect.

Rear body mount.

Here is a look at the front body mount.

Look close... The body post are replaceable.

Here I replaced the yellow body post to red ones to closer match the red body.

NOTE: This image is showing the bottom side of the chassis.
Here is a image of the latest chassis and some of the 3D printed chassis parts. I am still making changes but it is coming right along.
Top view of the chassis.
More info coming soon.