Am I a Dumbass or what

So my 5.9 build is almost finished.

I was 5 minutes away from mounting the intake manifold. Then I decided to run a tap through all the holes to clean them out a bit. Well I'm on the last hole, drivers side, rear most hole. And I snapped the tap off in the hole.

OMG! I screamed bloody murder ! So pissed off right now, I was going to set the engine in the car this weekend, but now I don't know what the hell I'm going to do. Probably have to pull the head, take it to a machine shop, spend a bunch of money, and lose a lot of time. probably have to buy another set of head gaskets, unless its ok to torque them twice.