Thank you for confirming. I tried the Team Dark Pro 3200 MHz CL14 DDR4, which appeared to be Samsung B-Die according to what I'd read and Thiaphoon. Even though it was 45 mm at its tallest point, the design of the module means it doesn't conflict with the HDD bracket in the Sentry. And if it didn't fit, I had the option to unscrew the top plastic piece of the heat spreader, which appears to be cosmetic only; the aluminum part is untouched if that plastic is removed and it shortens the module by a good amount.
Unfortunately that RAM didn't work with my Ryzen build so I switched it out for G.Skill Flare X 3200 MHz CL14. Even though it is about 40 mm tall, the heat spreader design means the HDD bracket does press on top of the RAM modules. It isn't too tight of a fit, so I'm going ahead with the Flare X. It's very pricey, but the overclock was easy and I appreciate the included temperature sensors.
Pictures of both modules in the Sentry: