Well I hope my 4000T motherboards are worth more than that .
Unpopulated 1993 era Revision 4 Amiga Tech Amiga A4000T motherboard in Denmark:
£120 + shipping
https://www.ebay.co.uk/itm/183016062732Unpopulated 1993 era Commodore Amiga A4000T motherboard in the U.K.
£210 + shipping
https://www.ebay.co.uk/itm/332439875761Perhaps we should get a group together to buy one, copy it and source some components...
(a pipe dream, I'm skint
)