8" wheels what offset should work?

I am at the point of ordering wheels here is where I am at:
71' Dart springs are in the stock location I need to run a 8" wheel cannot decide on either a 4" or 4.5" offset wheel.
Would like to get this year out of not moving the springs in.
This winter I plan on going with a 4 link so I do not want to do this twice.
Is there a way to make a 8" wheel work now?
Thanks.