I bought an canadian 261 out of an Pontiac with an 848 head in an Ebay auction for 1 Euro
No crank, valvecover, bellhousing - but who cares.
And it was not only here in Germany, it was even in my hometown.
But this was sheerunbeliveableonceinalfetime luck.
Ususaly they go for $600 to $900 in a decent condition and not totaly shot.
Frank