My bike has really wide rims (25mm internal width) so I'm not really too concerned with the lead weights interfering with the tire beads. Putting some rim tape over the weights seems like a reasonable alternative to epoxy.
I understand that an automotive tire is considerably heavier than a bicycle tire. However, when I pick-up my rear wheel and give the tire a good spin, it's very obvious the wheel isn't balanced... likely because my wheels came with these insanely long tubeless valve stems. One thing I'm going to do is buy much shorter valve stems and see what that does. I also have my speed sensor magnet on the opposite side of the valve stem, at least on my rear wheel, so maybe a lighter valve stem and the relatively heavy magnet will come 'close-enough' to balancing the rear wheel.