if they need to be repaired, send them out if they are not in need of welding, buy or borrow a set of felpro gaskets mark the area that needs to be removed, get the correct bits and what not to port them your selve. its not that hard. after that take them to your local machine shop and have all the mating surfices decked and trued, then install with out gaskets.
if you dont want to do that send them to nick micale.
Dathan