b16a from ebay?

Is it safe or a good idea to buy a B16a from ebay or do alot of people sell shit? KNow any reliable site to buy a swap kit off?

Check the sellers feedback and see if they've sold motors before. A lot of companies who sell motors online through their own sites also sell motors on E-bay. Of course random every day people do too. So read the description and see if it has any kind of warentee (sorry i just woke up and can't think of how to spell that at the moment) and if it does then it's a good deal. But here are some sites that a few of my friends have bought motors off of; quality ones too.
http://www.jspecauto.com/
http://www.hmotorsonline.com/shop/

My friend just bought a JDM ITR B18C engine from ebay ... we will see how it is once it gets here ... swapping it into his 94 GS-R