I like that type also PD. Just need to find two with matching hubs. I screwed up when I purchased a new set of hubs for a different trailer. It has the grease fitting on the end of the spindle like you said but the hubs are not long enough on the inboard side for the seal to cover the hole where the grease comes out.
Ask me how I discovered that. The axle was made by Tie Down Engineering and I believe they call their system "Posi Lube." Looking thru a couple of catalogs West wants a pretty penny for the galvanized hubs that Tie Down makes. That repair will need to wait for another day.
I know of a trailer manufacturer that I am hoping will ease the blowon the parts I need today.