Could you buy a basic one and the tool to swap the bearings out? Means you have bearing replacement capability and you can replace with a decent bearing when you need to. I run a BSA30 and only the NDS ever needs replacing so my Amazon bearing tool has come in very handy.
The frame is 24mm screw in, so bearing replacement is trivial. The problem is that I can’t find a rotor 24mm crank - but there are lots of rotor 30mm cranks on eBay. However I’d need bsa30 bearings - easy to fit, but expensive and probably less reliable.
Could you buy a basic one and the tool to swap the bearings out? Means you have bearing replacement capability and you can replace with a decent bearing when you need to. I run a BSA30 and only the NDS ever needs replacing so my Amazon bearing tool has come in very handy.