F/S or trade? Green HeNe w/PS,several reds,supplies,

[HD58PHD]

Hi to all,I have a 543.5nm green HeNe system,Coherent 31-2772-000 head,20 inches and 6 foot cable rated 5mw,doing over 2mw. Melles Griot lab style PS with the key and interlock.
Very low hours,stable,very tight beam. It's listed on Ebay buy it now for 250.00,as a bare tube is 200.00 alone.
Also various red HeNe's and a few lab and brick power supplies as well.
Open to offers and possible trades,
Mike