Broke bolt in new head (Kinda Long)

[1988GTCONERTIBLE]

I was quite surprised at how easily the bolt broke also. Very little force was applied to snap it, I didn't even get a chance to really lean on it. It was part of the complete engine bolt kit that they sell, it is worthless as far as I am concerned. I was able to use only about 1/2 of the bolts, all of the others were not the correct size.
My biggest concern is that there is only about a half inch of metal between the sanpped bolt location and the end of the head. That does not leave much room for error. If that piece snaps there goes the whole thing. I am amazed that I cannot find a decent shop around here, I live on Long Island and there are quite a few places to go but nobody sounds confident about the job at hand. One guy actually had the balls to tell me that it was a ford head. I think that I would know that. Needless to say he won't be seeing me.