The pedal strike issue is really just a matter of inherent clearances and how hard you ride, and you're the only one who can assess that. The lateral clearance WILL be less, but that really might not be a problem. A lot of well-respected 700c racing bikes have BB drops between 7 and 8 cm even with 175 mm cranks AND with narrower tires that have smaller radii.

Another significant factor is whether you will use wide old school rattrap touring pedals, much narrower old school road pedals like the old Campagnolo Record Strada (or Pista, for that matter), or a clipless pedal with a really small platform, like maybe a Crank Bros or an Eggbeater. I'd bet the difference in width between these pedals is a lot more significant in lean safety than the 4 mm difference in rim radius.

And even if the clearance is compromised, if you ride road non-competitvely you can learn to raise the inside pedal as you corner, not pedaling through corners.