428 FE whats it worth?

[MCDSiena]

New to the forum and about to start a cobra build, just narrowing down vendors now. I have an opportunity locally to get the below engine I am curious as to what it is worth and what I should be paying for it. Also any ideas on what HP I should expect from it. I am unsure of Compression ration or cam grinds at this time, should have that information next week. Thanks in advance for your help.

This motor is a late 60's vintage 428 ford motor used in Mustang's and Torino's The motor is a fresh rebuild, the block has been blue print square decked, bored .030 over, forged TRW pistons. crane cam, the crank has been indexed ground 10-10,the connecting rods have been rebuilt on both ends, rebushed on the small end and resized on the large end with new ARP bolts, the rotating assembly has been balanced, the heads are 428 police intercepter heads that have been machined for larger valves, intake & exhaust, new valves , springs, retainers, keepers. The heads are ported and polished and port matched to a edelbrock torker intake manifold.Every thing is new , just needs to be finished.