The key is "with good welding practice and skills anything can be done".
Without those skills and practices......you die.
Sure, heating up steering arms and dropping axles have been done for years and years. Some fail, some don't.
I know my brother had a 39 Ford with a dropped axle. He bought some spindles with dropped arms on them and bolted them on the car. Ran it for a number of years, down the drags at 100 plus, not a problem. Then one day.......he just got back from a quick run down the freeway to a nearby town. He hauled ars back and as he pulled in the driveway he decided to go to the front of the shop instead and put it in reverse. As it started to go back and he turned the wheel, it spun in his hand! The steering arm that the drag link hooked to just snapped off!
Yep, without the good welding practices and skills........
Brian