I know a person trying to sell a 390. it has been totally done has new pistons,rings bearings, comp cams 268h cam, says lower compression heads all redone also has the original heads as well. motor is assembled and on an engine stand with the edelbrock r4b intake. he is asking $1500.00 I need to know if this is a good deal sounds high to me but he has receipts over 1800.00 just looking for some help.