I live in, and Patrolled Jackson Twp. hence I've spent a boat load of time in Colliers Mills WMA. I enjoyed reading this article, but admit I got lost following your directions. The road that leads from Archers Corner to Colliers Mills is Hawkin Rd. Once it turns to dirt you could follow it to Rt 539, but with the Mega Base this road has been fenced off.
Going back to High Bridge, I believe I've been to the ruins you were seeking. On High Bridge Rd. before the bridge and just after the school there is a concealed Road to the left. This road will take you behind some houses along Rt 571, and will come out on 571. The ruins will be on your right. If you cross High Bridge and make your first left, you'll pass a hunting lodge, then parallel some old bogs, keeping straight will lead you to the fence of Lakehurst NAS, if you can get through. I have no clue where the lost lake is.
P.S. I grew up in Princeton, NJ Know it well.