ShopBot Desktop router up for the challenge?

[Monochron]

Originally Posted by RoboChair

http://www.ebay.com/bhp/cnc-spindle-motor
or
https://www.amazon.com/s/ref=nb_sb_s...=2LEHNTN7VNJII

I would suggest a 2.2 kw water cooled one with ER20 collets. If you do not have 220V power you will likely require a VFD as well.
You will also need to make sure that you will have a mount to hold it.

Are most any spindles with these specs from ebay or Amazon worth the purchase? I'm not sure if spindles are something where anything you get with these specs will do the job, or if you could be causing yourself serious pain by going with a knock off.
Is there anything aside from those specs that I should keep an eye out for? Good/bad manufacturers?