[TenTec] Paragon II (586) fair mkt value?

[WA2BPE]

Gentlemen:

Could someone give me an idea of the fair market value for the
following, please?

    Paragon II (586)
        with optional filters:
            282 (250 Hz)
            285 (500 Hz)
            288 (1.8 KHz)
        Just back from TT with "220" filter and Dallas clock chip
replaced + relaigned

    Power supply/spkr (961)

    Desk mike (705)

Condition is immaculate

I can find listings for the 585 (Paragon I) but not the 586.

Thank you,

Tom - WA2BPE