Forget a road bike - get a gravel/CX bike. There is no reason to limit yourself to 25mm tires these days - although lately some of the endurance "road" bikes take some pretty fat rubber. For you, I would get something that takes 40mm rubber and has an endurance type geometry (i.e. gravel bike). I do Crits, Cross, Gravel, MTB, and CX on mine - they are pretty versatile (well, more so with two wheelsets).