Has anyone found stock anywhere?

The annoying thing guys, is that for the price, if I'm going to replace that one snapped stud (the same one in wikings photo), I may as well replace the manifolds...since it looks like major work to get at it. I personally wouldn't feel safe in theory, lowering the engine onto a jack (so I guess I'll have to buy the crane) ...are you guys scared that the car might nudge suddenly if it slips off that one jack supporting the engine from below....and then maybe the jack stands could fail? Can someone tell me how risky this procedure is, without a crane?

 

I actually drilled/extracted 2 of the studs last winter - both front with engine in place. Not sure if these were the same as yours. Needed cobalt steel drill bits, straight angle pneumatic drill and special guide I made from MDF to guide the bit otherwise I'd drill through something. I wish I had a left- hand drill bit of the necessary diameter, I'm pretty sure they would come out without extractor. Hard to tell what is more time consuming: doing it with engine in or out. It requires a lot more patience when doing it with engine in the car for sure.