Re: what spacer is needed for the rear?
Just look on Ebay for a 1" spacer. It's only a little more than 1/8" wider than an exact fit. Otherwise I have seen some places that will custom size a spacer for you.
Try to see if you can find some that are hub-centric as this will help ensure a smooth ride when your wheel/tire combo is balanced.
I bought my 3/8" spacers from
this place.