Genuine parts are pretty much guaranteed to meet all specs and tolerances, with after market you cant be so sure. Having said that see if there are any reviews on those specific items and if not see if their are manufacture reviews. Also the price should tell you something, I'm not sure what a decent set would normally set you back if they're dirt cheap then there's a reason for it.
As for a tech write up I don't have one but I think the only real thing that'll vary are the torque setting for the nuts which any service manual should tell you.
You might need a press but you can get away with a rubber mallet.
Here's a video on how to do it if you're interested.
https://www.youtube.com/watch?v=CmN2dRAiuj0
Cheers,
Aaron