Know of several R5 P7engines, fresh ready to run for under 10k complete ready to run that have sold. Buddy of mine bought one and ran it in a Dart, well under 10k
Nobody will pay 25k, thats insane
The guy I bought my Indy headed R1 from bought several nascar engines, ready to run. At the time he already had one in a tube chassis Duster and one on a pipe rack. He told me it was the best hp per dollar out there.