After some untalented attempts myself at the trans tunnel, I enlisted the help of a friend that owns a shop here in SE Wisconsin Topline Design and Speed. 2 days later, tunnel made, fitted around the Ram Rod, and tied into the driveshaft tunnel. He even fitted the tunnel to utilize the NOS Ram Rod boot and ring. As you can see, it's a little tight by the seat. All was TIG welded, seam sealed, and painted.
Full speed ahead now. After I get back from Wisconsin Dells this weekend, I'll get the clutch in, the M22W, order the driveshaft, and get back to the beatings.