Once you get said hub, take it apart and carefully understand how it goes back together. Why?

Repack this baby even from new. Put a high quality, non-waterproof grease in there. I use the reddest or blackest wheel bearing grease I can find. You will not cook the hub on hills and it will pay off in reduced maintenance.

If there is one claim to fame I have it is rebuilding/modding coaster brakes. If you feel up to it and have some good red grease around, loose ball the hub. Loose ball coasters spin amazingly but need to be serviced often. Dirt gets in there.