Deformed Headtube Around Bottom Cup
If I was that desperate to save the frame, then the epoxy method sounds quite reasonable.

The only difference I'd make would be to use some carbon fibre in place of the aluminum strips. It's pretty cheap to get a short roll from Aliexpress

Put the bearing in and out a couple of times until it's a snug fit. Pull it out, epoxy the carbon, pop it back into place, clean excess resin off 

If you can do it with the bearing wrapped in glad wrap, you may not even have to make it your last ever bearing change as you should be able to remove it once the epoxy is set

Whilst the aluminium will have lost some strength, it's not going to fail catastrophically in that position as it's really well braced