The bearing ring of the Tiger was on the inside lower wall. It had prominent bolts on its top surface. Rye Field's Tiger interior has the bearing ring, and they have molded the bolts into it.
This is Rye Field's CAD showing the bolts inside their turret. For turrets with the "new" cupola, the bolts are in pairs connected by a locking strip.
But when we compare the CAD to this diagram of the true layout, we can see problems. At the front of the turret there should be seven countersunk screws. Rye Field have placed bolts there. This is a mistake.
There are also problems with the spacing of Rye Field's bolts. They have used more bolts than a real Tiger had.