Sell them both and buy a CX bike. That is, if you can find an actual CX bike with a high bottom bracket and not a gravel bike they're calling CX. What's funny is on Specialized's website they have a cyclocross page with the CruX, and on their gravel bike page they also list the same CruX. And it has a 72mm BB drop. It looks almost like a road race bike that fits big tires which would be good for the OP.