Agree. Several have posted on other forums that they encountered rubbing issues with widebody kits that don't require any cutting.I'd strongly suggest canceling that order and getting the Dodge kit. It makes it a factory conversion with OE parts. More work and a little more $$$ but it will be worth it.
If not, might want to start looking at solutions for rubbing so you can solve them before final assembly. Example - Rubbing Issues
Best of luck!