Selling my Eperm system complete

I am selling my Radon testing equipment complete. I have the following items to go as a package unit. Way too much competition in my area to just be a measurement professional. Would like to get $1800 USD but will look at any reasonable offers as well.
My stock is as follows:

  1.   Rad-Elec SPER1-E1 s/n E0825 with case and reference electrets Just out of calibration
    
  2.   18 - S Chambers
    
  3.   25 – L-OO Chambers
    
  4.   3 – Twin Test Boxes for the S Chambers
    
  5.   Nitrogen cleaning Gauge and hose kit (no nitrogen though)
    
  6.   2 – Rad-Elec thumb product drives one unused and one used
    
  7.   11 – LT Electrets. Values can be sent if interested all between 520 to 770 volts
          only 1 of the LT electrets is below 600volts
    
  8.   31 - ST Electrets. Values can be sent if interested all between 270 to 720 volts
           only 2 of the ST electrets are below 400 volts
    
  9.   Health Canada literature (if you want it, otherwise it is going to recycled)