Appropriate Wheel Offset for 18" Wheels?

So what size offset do you think I'd need front and back. Due to the small wheel wells, I'll constrict myself to 245/40/18's for now (8-9.5" wide wheel). Using the same tire size and offset, I don't see how wheel width would matter. All it would do is stretch or bulge the sidewalls.

Just surfing CL these are some of the wheel specs I found that might work with or without spacers...

1) XXR wheels
Bolt Pattern: 5 x 4.5" / 5 x 100mm
Hub Centerbore: Unknown
Width: 8.5"
Offset: 35 mm

Not a fan of the duel bolt pattern. Not a very wide wheel. Need spacers for rear.

2) Unknown make or Varrstoen ES2 (found two different wheels)
Bolt Pattern: 5 x 4.5"
Hub Centerbore: 73.1mm
Width: 9.5"
Offset: 22 mm

Based off of my research, I feel like I could get away with this combo without or with very skinny spacers front and rear. Plus the width may end up helping me out if I choose to go wider tire in the future. Both wheels are built to clear big brakes.

3) Enkei RP01
Bolt Pattern: 5 x 4.5"
Hub Centerbore: Unknown (could find them if I searched hard enough)
Width: 9"
Offset: 42 mm

Would definitely need spacers.

I kind of like option two as they look nice and may seem to fit both the front and rear with little work. All wheels are $650-800 w/out tires. The ES2's come with NT05 245/40/18's for an extra $500 if I want them. The Enkei's are about $1400 for wheels and tires but they're on RS-23 265/35/18.

Pictures are posted in order of how they're listed... XXR, Unknown, ES2's, Enkei...