That sucks Frank. <img src="/forums/images/graemlins/frown.gif" alt="" /> I loved following this thread...and waiting for you to release a kit! <img src="/forums/images/graemlins/smile.gif" alt="" />
I'd want to do a tear down inspection too, but I'd feel pretty confident that there won't be too much Collateral damage. I think you'll just be looking at a thorough parts cleaning and a new gasket set to put her back together. My brother dropped a whole 5/16" lock washer down his Bronco 302 one time, only needed some light filing on the piston top and an exhaust valve (and gaskets). He put another 50k miles on it and the guy who bought it is still running the same motor.