Surprisingly, USPS delivered my Besian kit today and I completed the assembly of the new seals.
The first news is that Besian has created a replica of the OE disc and it seems they now can either supply the new billet item, or a redrilled OE item, in my case I got the new billet replica that has two holes, which are 1mm less compared to the OE item to reduce the play between the disc and the exhaust hub tabs
In this image, you can see the two discs side to side
Next, the dimensions of the OE disc holes (10.80mm)
And now the new Besian disc (9.76)
I finished the assembly of all the seals and disc
Installing the seals is easy, but it is also stressful as you need to stretch the seals quite a bit and you have this tension as to whether or not you are doing it correctly. The most difficult ones are the inner seals in the intake piston cylinder, I used the c-clip ring pliers as they worked great to maintain the seal compressed as per the Besian manual without having to place the seal in the grove using the same hand to maintain constant pressure while placing the seal in.
Tomorrow I will have fun finishing the VANOS installation and timing procedures.