Sid 3 slave cores: parts to leave out

[OnAcid]

Hello,

I'm building the mbhp Sid and tomorrow I'm going to order the last parts.

The cores are only going to be used for this project, so which parts can I leave out of the 3 slave cores?

If I'm correct:

IC3 - 6N138 Optocoupler (+ dil socket)

T1 - Transistor BC337                            

R4 - Resistor 1 kOhm

P1, P2 - TrimmPot 10 k  

R5 - 5.6k

R6 - 1.2k

and a lot of the silheaders.                          

Thanks in advance!  :D