Need pricing advise please - 18" monoblocks

[EDMB500]

Gents, can you please tell me what a reasonable price nowadays is for a set of 4 used but newly refurbished 18" genuine monoblocks - see photos - I am looking to sell

The 9j x 18 model number is

2104100202

It's a 9J ET 35

The 8j x 18 model number is

1294010102

It's an 8J ET 31

Thank you

 

[BRN9121]

Average to not so good condition, $1000
Refurbished or very good condition, $1500 to $2000
Brand new out of the box, Priceless!