Will these 20's fit?

[SRG963]

Steve inspired me, I'm going staggered with some 20's in the rear. Now I need to find a similar looking wheel to the stockers.

Here's the size I'm looking at now 285/30-20, they would be the same OD as factory's.
Will that fit alright with no rubbing?
I haven't decided on the actual rim yet. other than it will be light.
http://www.miata.net/garage/tirecalc.html
http://www.discounttire.com/dtcs/searchTiresBySize.do?r=WASINT|pc|98204&cs=285&ar=30&rd=20

[PantherGTBlack]

What offset? I ran into offset issues.

[-Ray-]

You need around 55mm positive offset.