lltfly

Hi,
I am going to get a set of aftermarket wheels to replace the current 17'' stock wheels.
Actually, I prefer 18'' stock 5 spokes wheels. But I could not find it. some on ebay are reconditioned. I am not sure reconditioned one is good enough to drive around. And reconditioned one costs me 140 each. I thought probably I can go for aftermarket wheels which are brand new and around 40 dollars more for a piece.
I do not know much about wheels. But I am learning. There are a bunch of brands out there. I am confused that which one is firm and good for driving over potholes(I am living in NH. Winter is tough)
1. My budget is under 200 a piece. Can I get a good value wheel which is produced by decent brand at that price?
2. stock offset is 55mm, Can I put 42mm - 45mm offset wheels on my 2012 TL base without any suspension or stock configuration adjustment ?
3. I picked 3 wheels :
1: ENKEI TUNING Series RAIJIN 18*8 42mm, 20lbs, this one is 181 each.
2:BREMMER KRAFT BR10 18*8 45mm, 22lbs, this one is 165 each.
3:TRMOTOSPORT C2 18*8.5 48mm, 21 lbs, this one is on sale which is 109 each.
I know ENKEI is a good brand from Japan. For rest of 2 which are BREMMER KRAFT and TRMOTOSPORT I have no ideal. I am a beginner.
Could you guys give me some suggestion that which one is better for me?
And I do not want to adjust any stock configuration, So whether 42-45 offset is fit for 2012 TL base?
In addition to offset, I see a spec called backspacing, is that really a matter?
What other brands are better buy within my budget of 200?

Thanks appreciate