With no load, DC on the output won't draw excess current. But put a load on it and voila, bright bulb. Bias shouldn't affect DC on output. So work with NO load for now.
Q5 is the bias transistor, it sets the voltage DC difference between bases of drivers Q3, Q9. Roughly 2v, like yours. Whatever voltage is on Q5 will show up on the output. SO of Q5 ssits at +30, so will the output. This tends to mean the outputs are working.
SO why is Q5 sitting at +30 instead of around zero DC?
Once powered up +55v should come to Q5 by way of Q2 and R23,R24. It is getting there or we wouldn't have +30. The bottom end of Q5 is pulled down towards -55 by way of R38,R39,R39A and of course the voltage amp transistor Q8. And in my mind the problem centers there.
Q8 is driven by Q7, with correction by Q7. So check Q8. What voltage is on its base? In other words is Q8 not able to conduct current? Or it it not being turned on enough by Q7? And the three Q8 resistors, are they OK? And are Q6,7 OK?