A lot has been done but I'll just show where it got me to.
Here is an early photo to give understanding to what's been done. It's a close shot of the firewall and how it sits on the chassis according to Pocher. Note the rectangular wood block between the floor and chassis rail. See that the firewall is spaced off the frame by .250". The high firewall raises the body front even higher. This causes the hood to slope downward from the firewall to the radiator - the originals were flat:
The object is to get the floor (which attaches to the body side sills) to rest on the frame (thereby lowering it) to give the correct proportions the 1:1 had.
Another earlier view showing that the cowl is raised above the firewall (a huge ugly gap) and the step between the firewall and cowl. Clearly the body front edge is much higher than the radiator. This would be an out of box assembly:
After much cutting, grinding, slotting and bracket removal, here's where it is now. Firewall sits flush on the frame, Body is channeled roughly .250" and cowl sits atop the firewall. This lowers the rear of the hood line making a straight line from radiator to body. The entire floor will sit on the frame at front (hadn't been slotted completely in this shot; it now sits flat) and nearly flush in rear. This will also lower the rear fender tire clearance. The louvers and side panels now have different relationships and will need sectioning and material added to give a straight louver line and hood sides that rest on the frame, not overlap. Just careful measuring and fitting to come:
Now with the help of a little editing, a look at where we're going. To visually lower the car's aspect in addition to the actual lowering done so far, the door rear window track and door top edge have been removed:
And here the windscreen frame and top have been chopped roughly 5/16". Compare to the second photo above:
Much has been done so far but much remains to get all the various proportions to play with each other. All this advanced work has come from studying the Dave Cox site and conversations with him.
It's giving me the model I'd always hoped.