If you want to work it out
Do it yourself
Gordeans mr2 wheel calculator
Google it

Shows diagrams on how flush the offset sits
Shows changes in speedo etc check that and find the right rim dimensions for you.

best to trial fit them as many have suggested earlier
you might not have any of the issues i mentioned baove and it might fit perfectly, you wont know until you try
8.5inch rims are not very common which is why we cant give a proper answer.
most people have 8 and 9 widths in whatever size they want (17, 18 etc) with a 35 offset and that seems to sit nicely on the sw20 body.
 
yours being 8.5 all around (front and back) with a 32 offset
means your half inch wider already in the front, so .25 inch wider on both inside and outside of the rim
yours also 3mm lower in offset (thereby moving the wheel further away from the strut)
if you only have stock suspension, then you MAY be ok in the fronts (also depends on the profile of the tyre you have in the fronts)
rears will clear easily
only way is to test fit it
cheers