When I receive Eros 2 kits with problems like this, it is almost always a solder issue on the front PC board, and sometimes the 6922 will be taken out in the process, and sometimes the 2N2222 transistors give up depending on what wasn't soldered. You can check transistors for shorts by setting your meter to beep for continuity and checking each pair of transistor legs for shorts.
Seeing 233V at IB on the front C4S board tells me that there's still an issue with the regulator board above the 12AU7 that needs to be dealt with.
The voltages you posted show that one half of the 6922 is not conducting (or being allowed to conduct), which could be a problem with the plate stopper resistors (they go to pins C1 and C6), a short on the C socket, a bad solder joint on the MJE350 feeding that half of the 6922, or possibly a shorted transistor that isn't allowing the current to be regulated (or a solder bridge on the bottom of the front C4S board will also do this).
