Found a set of wheels local. The offsets seem kind of weak, can anyone chime in with thoughts?

18" x 8" et 42
18" x 9" et 44

225/40 front
255/35 rear

Will these fit without spacers?

 

On stock suspension it should fit.

 

Those should fit perfectly actually. You shouldn't need any fender work! Of course if you lower it then you might depending on your spring rates.

As long as they aren't super deep dish, you'll be okay. The offset for the stock wheels is 50mm at 7.5" width.