Looks awesome, sounds like it should run even better! What are you going to do for an intake and intercooler? For 160hp with no smoke you will probably need to feed it plenty of cool air...
The new AMC head that I got for the one I was putting together, I think, also has 32mm prechambers. From what I understand, only US spec D24T's got the smaller prechambers. I guess AMC just makes one type and probably sells more heads in Europe, hence using the big chambers. I don't notice any major power difference in the stock motor I used the AMC head on, but I bet the difference is more evident when you are running additional boost and fuel.
Looks like a sweet rod length measurement setup. Next time I have one apart, I'm going to have you match a set for me... you should offer a rod exchange service for anyone wanting to put a motor together!