getting new rims and this is what I have come up with
Fronts - 18x8 + 35 (215/35)
Rears - 18x8.5 + 30 (235/35)
will I need to roll my guards for this fitment new to having an mr2.
any help or better fitments for an every day street car? 

N/A or Turbo?
If N/A
WAY to big in my opinion, but each to their own, stay with the full 1inch staggered option, as the engineers spent $$ designing it this way for a reason.

IF turbo, sounds good but keep the 1 inch difference.
Have a look on this site, this will give you a good indication,
http://mr2.gordaen.com/wt_calc.php

also, if you have coilovers, roll the guards or adjust height, if stock suspension and stock height, should be fine, Flush is i believe 22mm or 24?
im running plus 32 all round without an issue.
the issue you may have the front may not clear the strut. being 8 inch wide. as mine is 7 inch wide and sits about half an inch off the coilovers.

Ethan

If for street/aesthetics, they'll work, likely without guard rolling (depends on tyres). A 18 x 9 +35 would be better in the rear though (with a 255/35 or 265/35). If you're bound to the above options, you can fit a 255/35 tyre to the 8.5 wide rim.