Nice analysis Riggo, why do you want to get rid of the Style 131 and do E70 18" wheels though?

The Style 131 is very classy in my opinion and it's less of an upgrade to laterally buy the same size wheels as you have now, you will hate the RFT ride as well trust me.

If you are keeping the 131's with DWS as a "winter set" for GA then I would recommend at least getting a larger wheel for summer use. I know you are worried about the 20" wheels but trust me the staggered 20's (or 19's) with non run-flat tires will be more comfortable than 18" E70 wheels with runflats. Just my .02

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards