400 short block

Hello,
My local machine shop has an assembled 400 short block that the customer no longer wants , No cam , forged flat top pistons , zero decked , Has a cast crank , align bored , cam bearings , aarp fasteners ,
Whats it worth ? He wants $2500 , too much , I am going to make him an offer
My plan was to build my 69 383 stroker but I waited to long to drop it off at the machine shop.
The 400 will get me going .
It will be going in a 68 Notchback Cuda