I am looking for an inexpensive wheel to mount some tires on for auto-x purposes and I came across a brand called SSK? I was planning on going with Rota but if I can find something even more affordable that is okay then that would be great.

Found them here:

They are 16x7 with a 40mm offset. Is that a good offset or what should I look for in offset?
http://cgi.ebay.com/ebaymotors/16x7-...spagenameZWDVW