Wow. sometimes you do need to be a rocket scientist to figure this out.

I need some help with picking new rims for my 2003 F250 FX4 Crew. Here are the values I am shooting for.

18" or 20" rims with Hubcentric. prefer 20"
Hub is 4.93" or 125.22mm
Offset -10mm?
285-305 tire size BF Goodrich TA KOs or similar.
white/tan truck color
hole pattern 8x170mm


Questions
- is the -10mm offset correct for the size I am looking for?
- is a hub size of 125.5 or 126mm close enough? seems .5mm would be good all around.
- V-Tech Wizard in chrome is one that appears to meet the requirements. Does anyone have any comments or experience with these rims or finish?
- Liquid Metal Gatlin in chrome also appears good. Does anyone have any comments or experience with these rims or finish?
- is machined a longer lasting finish than chrome or has chrome improved enough to not worry about pitting?

Thanks for the help.