[TenTec] Omni 545B (Omni A, Series B) with Model 280 PS Question

[Don Allen <w9cw@yahoo.com>]

I'm considering selling my Omni 545B (Omni A, Series B) with Model 280 
power supply.  The Omni includes the optional 500Hz xtal lattice 
filter.  The Omni is aesthetically 9.5 out of 10, and is electrically 
fine, including the recently rebuilt PTO.  The 280 is electrically 
fine,  but has a few scratches on the top of the cover (Note:  It had 
the scratches when I bought it used a number of years ago).
What's the typical price for an analog Series B today with PS?  I have 
no idea what to ask should I decide to sell it, and I don't want to put 
it on eBay.
Tnx,
Don W9CW