Some help with wheels/tires.

I am in the planning stages of my build. Aesthetically I am looking to fill the wheel well with a good balance of tire rim. With a rear drop to match front height, 275/70r18 seems to fit the overall end look of the build that I am looking for. I found an interesting wheel that I think will work, MO977 LINK. Yes, it's drastic. Was wondering if this set up would be possible. Not looking to put real meaty mud tires on them either. Also trying to keep from a big loss in MPG. Below is a pic of wheel and my 2WD SR5. Thanks for the help and suggestions.

 

It should work and it will depend on the offset of the wheel if you need to remove mud flaps up front