I'd rather give up a Bendix 76 hub because I've got a bucket of them and they rarely take much in the way of repairs.
Around this area, Bendix hubs are common, Huffy, Murray, Ross, Columbia etc all used them and those bikes are what turn up on trash piles and flea markets most often.

The pile of 28h Shimano hubs I've got here don't look very promising, even if I found a shell I doubt there's enough parts here to make a complete hub and I don't see that bike as being worth another $40 for a new hub.
Out of the 24 or so complete Shimano hubs I've got, I see at least 20 with broken flanges, a few broken axles, 8 are seized up, one is missing a flange, and a few are rusted pretty bad. All are low spoke count hubs, not a 36h in the lot. They likely came off of junked kids bikes that were trash picked over the years.

I have four or five Suntour hubs, I believe all are 'type 3' style but only one is 36h and that one has 3.2mm spoke holes.
I'm not sure why I saved these, but with Suntour gone, I suppose they're getting to be a little rare now.
I still find Bendix equipped bikes here and there, but the majority are no name branded coaster brakes made in China.
The majority of the time, if someone tosses a coaster brake bike its either because they tacoed a wheel or the rear hub is broken in some way. In general though, the type of buyer who buys a later coaster brake bike is a bit more careful with their bike than those who buy a $100 mountain bike or bmx.
In the past, I think most coaster brake bikes outlived their owners. This new stuff doesn't have that kind of quality.