Piston set for BJ8 - Recommendations?

[JJSandSMS@cs.com]

I need to replace the pistons in a 1964 BJ8 phase II as the top land is worn 
in all six.    Any advice/recommendations as to certain brands to purchase or 
stay away from, ie. junk metal. I am pricing sets from the usual vendors and 
really do not know what the source of the parts are.  

Thanks in advance.

Jeff Stepek
1964 BJ8 - HBJ8L28207