[time-nuts] Sourcing a HP/Symmetricom 58540A

[ddpn]

Newbie here...

Might anyone be able to suggest a (cheap) source for a 58540A?

I thought I might dabble in building a first 10MHz bench reference (with 
bonus 1pps) along with a small distribution system, and the 58540A pretty 
much looks like it has the essentials without too much fluff.

When they have been available, what is a typical asking price??

Merci.

Tom - Michigan