Quote Originally Posted by Muirenn View Post
175 is super long. My inseam is 32, and I use 170

How tall are you?

According to this:
Crank arm length is highly dependent on the rider but here is a ‘rough’ guide. If your inseam is under 31 inches you may want to use cranks that are shorter than 170 mm. If your inseam is over 32 inches you may want cranks longer than 170 mm.

Hope that helps.
Maybe I'm not reading the OP correctly, but I think the the crank with 175 crank arms is just temporary while her LBS orders the right crank. That said, even a short ride with overly long crank arms could hurt the OP's knees. That would concern me more than toe overlap. In the very least, she might need to lower her sad 5mm to accomodate the lower pedal stroke.