Hurst V-gate repair advice needed

I'd grind the top of the shifter stub down a bit to get to more meat then drill and tap it. Cut the head off a long grade 8 bolt and install with red loctite. You won't break that bolt if it is 3/8" dia but 5/16 could still be an issue. Drilling it straight could be a trick but clamping some guides to the shifter stub should help. A good grade of bolt with decent support for the handle on the top of the stub, will live. You dont' want that handle sitting out on the end of a threaded rod with no support, that is why it broke in the first place. Need some support to take up that forward and back loading. That nut should be sitting down on as broad a shoulder as you can provide.