Unix 2.9BSD for 11/73

[The Software Warrior]

I am trying to find out how to put Unix on a PDP 11/73. It is my
understanding that 2.9BSD is essentially equivalent to 4.2BSD except
that 4.2BSD runs on 32bit machines and 2.9 runs on 16 bit machines. Is
this correct ? Is this the best Unix to get for an 11/73 ? Is there a SV
port for this machine ? 

I would also like to find out what kind of costs and problems will be
involved in bringing up UNIX (whatever flavor) on this monster. Who can
I contact for information about 2.9BSD and how much would a licsense be
for an 11/73 ?

Any help would be greatly appreciated.

						Ed Thompson

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