Having answered my question, I played around with the area just SW of Lakehurst a bit.... yep, same area as that Test Catapult and Test Arresting Gear Facility.
Here's the view of my "MS FSX default" - with UTX-USA landclassing/textures

reverse view - looking back towards Lakehurst inthe distance

Switching to true MS FSX default, FS Genesis or Scenery Tech landclass doesn't make any significant difference.
Preliminary results after manual hand-landclassing and dummy afcadding the test facilities

reverse view - looking back towards Lakehurst inthe distance
Reasonable preliminary results which illustrate fairly clearly, I think, the true limitation of relying on UT(X)-USA or other payware landclasses for any kind of "accuracy" in non-urban areas.
Add to that the fact that Lakehurst is now officially part of a 3 base complex - McGuire AFB, Ft. Dix and Lakehurst itself. So, to really do this area/base/complex up right, I'd need to continue that big forested area well to the west towards at least McGuire/Ft. Dix. Major roadwork and construction of clearings in the woods representing ranges, storage and exercise/training areas would need to be done... and on and on.
Fwiw, I'm trying to modify a recent FS2004 scenery package depicting Lakehurst to match up with this preliminary work.... It's at least as much of a pain doing so as parts of my Kola peninsula project have been - but has reached that pain threshold much quicker!!!
