All dressed up, full tank, mirrors, seat belts, both seats, tunnel installed, cranked up to back out of driveway .. reverse gear won't engage

With only 30 min left till the appointment with the trooper, I called him and rescheduled for Wednesday afternoon.
Been fiddling with the Hurst linkage, thought I had it perfect, but didn't adjust reverse after it worked the first few times. Today it was different, it wouldn't go in. Need to untwiddle the shift rod, not a big thing.
Big thing is the
oil leak off the back of the block. I wish it was a bad pan gasket .. but I'm afraid it's a rear main seal or possibly the manifold seal. Will investigate further after the Sat DCC debut luncheon.
Sam