So is the body actually raked off the frame too?? How is this stance accomplished?
On the one posted (mine) the body is evenly channeled the width of the frame front to back. This is more common. It's called channeled, compared to unchanneled. To see the difference, this link has a video explaining both setups. Click on the 3rd picture and let the video play.
On the picture I posted, note the Red lines are all in the same plane. Frame, body and bed.
What is different is the driveline being tilted down in the frame shown by the Orange line.
If you scroll to the top of this page, Spanky posted Ivo's (Red) and Norm's (Blue) T-Buckets together.
Ivo's in the foreground is 'level', the engine is the same plane as the body and frame. Valve covers, spark plugs headers all even with the frame below. This is the way just about every modern kit is designed.
Norm's in the background has the engine fairly level to the ground, but the body
and frame are 'nose down' or 'raked'.
Comparing the two, they have similar size wheels and tires, but note where the bed and rear tire are in relation to each other.
This is a modern picture, but they were both built back in the 50s, Norm's was first.

These two pictures should show it better. Tommy Ivo's.
The lowly Model T, Henry Ford’s gift to mass-produced transportation, launched millions of affordable automobiles, but it didn’t take long for hotted-up versions to appear. The early prewar days of motor racing were populated with all manner of modified Ts – lakes runners and dirt track racers, prim
fuelcurve.com

Norm Grabowski's
It makes sense that one of hot rodding’s most wacky, larger-than-life personalities would concoct one of hot rodding’s most iconic, larger-than-life cars. That’s right, we’re talking about Norm Grabowski’s ground-breaking, silver-screen-friendly roadster, the Kookie T. From the parking lot of Bob
fuelcurve.com

The links are both to Fuel Curve. You can find more history and pictures at Kustomrama and other sites.
Because almost all kits since the 60s are designed 'even', any T's that are 'raked' tend to look like early builds. Many consider them to be goofy or wrong. I would have been happy either way but am glad mine has this and am not going to change the feature.
Here's an example of a couple that have the body 'raked' on the frame.
This NOT the same.
For quite some time I've been fascinated by a wildly raked T-Bucket with roots that go back almost 60 years in the Spokane, Washington area. Its lingering
www.tbucketplans.com