Vintage Radio Setup

HELP!!
I have been enveigled into trying to set up a STR 18 C

H.F. radio.This is the replacement for the old 1154/55 that most old

radio buffs remember.The problem is a few people have tried in the past and

while they have collected some of the boxes, there are up to twelve

depending on the aircraft, nobody so far has got one up and running, and it

is getting late.

So, please can you help,any information as to whereabouts of bits

and pieces however seemingly insignificant, any bits, in fact anything to

do with ARI.5874. Thanks Olly