Wheel/tire sizing question, gotta ask the pros.

Ok, so I got a set of euroline DH's fronts are 18x7.5 +30 and the rears are 18x8.5 +35, yes I know not big offset or wide wheels but I've always liked eurolines and I got an awesome deal on them, I have an S13 coupe, stock body, no rolls pulls or over fenders, what tire sizes would you guys recommend? Right now the car has some 16x8 +25 all the way around, I like how they sit whith the fenders so I'd kind like to stay in those specs in terms of offset, would 5mm spacers for the fronts and 10mm spacers for the rear be good? I'm on some cheapo emusa coilovers so I don't know if I will run into any clearance issues, I'm new to the whole wheel offset shit and I've tried to search already but everyone now are running some wide wheels and finding info on my specs has been annoying for the past two days, I'm not trying to be super flush but I'd like to stay away from the sunken wheel look and be decently low, figured I'd ask here since you guys have gone through so many different wheel sizes, offsets and tire sizes and know know what you guys are doing

its very early and my math might be off, but to stay with the fitment you have now you'll want more like a 15mm spacer in front and your new rears will be about 2mm more agressive than what you have now without any spacer.

as far as tire size goes, that's up to you, i have no idea what people usually run for tire size on wheels like that. I wouldnt recommend going very wide though, probably stick with like a 205/225 stagger or something to keep them from looking like balloons on your skinny wheels.

Thanks man, the 205/225 is the route I'm going to take