mopar hood tachometer wanted

The Tach 19 Again has mounted on his very nice Duster is a GM unit commonly found on Pontiac GTOs and Firebirds. It can be mounted on any car but its a GM part. Ive had 3 or 4 " Hustle Stuff" Chrysler parts hood tachs they were made by Dixco for Chrysler. When Dixco made them for the Chrysler parts division they came with a Blue and White silk screened " Chrysler Parts" logo on the faceplate bezel. I have a N.O.S tach for my 72 Demon ive been offered $1100.00 for it but i wont sell it. I had a brand new in the box N.O.S 1970 date coded hood tach 2 years ago i sold for $1200.00 on egag. Last year another N.O.S one sold for $1500.00 so they go for big $$$$ N.O.S. keep looking on egag they pop up now and then.