So for mounting the instrument cluster, it's pretty straightforward.
There will be a flat plate, approximately 7" wide by 8-10" long (length
TBD based on how things line up).
This plate will connect to the factory crash bar in the same manner that the stock steering column assembly did (from below with two large nuts).
Attached to this plate from below will be the two heim joints supporting the steering column. They'll pass through the plate and be secured with nuts and washers from above and below. This will allow adjustment of the shaft's mounted height via adjusting the heim joints higher or lower on their threads.
Attached to the rearward-most edge of the plate (closest to the driver) will be the bracket pictured here. The flat plane (circled in red) will be flush with the top of the plate, the small fingers protruding will help align the bracket to be true with the end of the plate.
The instrument panel then mounts to the top of it as it did in the original column.