[Milsurplus] Looking for parts. PEWS

[KD7JYK DM09]

PEWS.  Platoon Early Warning System.  DT-577(V) / TRS-2(V) et cetera.

I bought a unit nearly 30 years ago, couldn't get it to do anything 
(wasn't programmed), so I scrapped it.  I have the top lid, a gasket, 
and the spikes readily findable.

I have now acquired another unit, mostly complete, but, what I'd like to 
find is, the small antenna, which is a piece of wire soldered into an 
acorn nut, and painted black, and, if possible, another wire jumper 
connector/code block, found just inside the battery door, for programming.

If these aren't available to obtain for an absurdly reasonable price, 
then perhaps someone could measure the antenna for me, from the bottom 
edge of the net, to the top of the wire loop at the tip?  And, if the 
connector/code block with wire loops isn't available, I may be able to 
just use some pin jumpers from a computer.  Normally these transmitters 
are programmed by cutting jumper wires, which I'd rather not do without 
a replacement.

A pic of a unit with the little black antenna can be seen here, the 
piece on the right, NOT the "rubber duck" antenna:

https://i204.photobucket.com/albums/bb157/jtma508/For%20Sale/PEWS005.jpg

I couldn't find a pic of the code block online, but can take a pic if 
someone would like to see it.

Anyone have any bits and pieces laying around?

Kurt