If you take the available photos as a basis, then the finished case will look something like this:
The BTR-60PB armored personnel carrier, developed in the 60s of the last century, has a crew of two people and eight paratroopers. The turret is equipped with a 14,7-mm machine gun and an auxiliary 7,56-mm machine gun paired with it. The all-welded hull is made of armor steel 5-7 mm thick, the maximum thickness of the front of the tower is 10 mm.
Although the original BTR-60PB is floating with a mounted water cannon in the stern (visible in the photo below), the redesign most likely consists in building a boat hull around the rear of the armored personnel carrier. It is possible that the engine of this BTR is out of service and that an outboard outboard motor will be installed. It will be less secure than its own BTR engine, but this is more practical.
Work on the alteration is presumably carried out at a cement plant between the cities of Derna and Martuba, 250 km east of Benghazi. Recent satellite images of the plant, made in February of this year, confirm this theory and demonstrate the presence of this armored personnel carrier there.