...and as can be seen in the last couple pics, I
finally got around to building the drive-shaft tunnel.
First I used half of a 5" OD 1/4" wall tubing section (2.5" wide) to reconnect the floor brace/seat mount.
Then I built the tunnel in two sections.
Still need to cover the frame cut-outs, but I can tell you that floor section around the tunnel is STRONG!