Head Blown? 2001 honda s2000

Head Blown? 2001 honda s2000

Well i first relized it when the car was misfiring so i bought a new Air flow sensor and it seemed to help it a little bit. But when i took the valve cover off i noticed the pin that were holding the valves we dropped or missing, But here is the good part i bought it in the beginning of the summer of 2007 and it ran fine. but then the engine blew 3 weeks later i got it fixed but it seems that the dealership only replaced the broken valve. but i was wondering if i should just send my head out to San Fransico For $1000 and get it replaced with free shipping and bore and stroked and shit like that?