Worn Crankshaft Snout

I’m really upset with myself with this one. I had to do a timing job a few months back and everything went well until I wasn’t able to get the proper tool (that worked!) to torque the harmonic balancer bolt to the right spec. It came back to bite me in the ass. That pulley came loose and now it’s decommissioned again. The snout of the crankshaft is noticeably worn though I’ve been told (by mechanic) that as long as the area where the woodruff key is is clear from damage I should be fine to put it back together. I may want to clean the area up, add epoxy, and smoothen out the snout before reassembly. I’ll also be replacing the harmonic balancer because of the inner wear. Any suggestions or recommendations are appreciated.

 

So I'm not sure if the wear on the shaft will matter or not, but here's how I torqued my harmonic balancer without any special tools (a little redneck but it worked well):

 

I’ve seen that method in the past. I just rented out a torque pulley holder tool but that wouldn’t be bad either. Are those sockets or metal cylindrical cutouts?

 

They're actually just aluminum skid plate spacers. I ended up with 2 hardware sets for my 2nd Gen Tundra skid plate, and I used these here since the m8 bolts I bought to thread into the pulley were too long and I didn't want them sticking way out of the back of the pulley. If I'd done my math to calculate the necessary bolt length correctly I wouldn't need them