help pick 17"ers on a 70 Swinger

so i currently have American Racing OutlawI's on my 70 dart. 14" rims. i plan to use RMS front and rear suspension on my car. Originally i planned on gettin the same whels, but larger since RMS requires 17" minimum. Turns out, OutlawI's only come in 14" and 15". so im on the hunt for a different rim. I like the gloss black spoked Torq Thrust M, butr i want to get other opinions. the pics below are how the car is planned to look like when finished so anyone with photoshop and time, id appreciate examples by using these pics. otherwise gimme some ideas!

Also, im not sure on what tire size ill run. i want somethin reletively beefy. I love the look of white letterin but im thinkin with the 17" wheel i may not have enough sidewall for it. dont want to lok like a monster-car. am i worrrying over nothing?