In the picture of the pin #1 reverse, tell me the two monuments in the foreground are not the tee blocks for #2. Looks like it would be an awkward stance for the drive.
I'm not sure what those two stones were there for, but the tee for Reverse #2 was actually the back tee for #18 normal routing, so it was off to the right of the Road Bunker.
The Links Trust did a very good job of moving the tee boxes, etc around to set up for the Reverse Old Course; there was no feeling that this was jury-rigged in any way.
There actually was one tee that was just a mowed rectangle of flattish fairway. This was for the Reverse #12, just after the Reverse #11 which played from the normal 9th tee to normal 7th green, a bit blind over gorse. Reverse #12 then played from in front of the Shell Bunker and the green was, I believe, #6 normal or #12 Reverse, beyond a bunch of gorse. The tee shot played down the area of the drive on #7 normal routing, so that nest of bunkers was definitely in play.