The problem is that at some point the tires will bottom out on the inner fender, and that can happen before you do anything like notch the frame for clearance. I have QA1 tubular LCA’s that came without the built in bump stops, so they add some suspension travel even with the bump stops I installed on the frame. When the LCA’s are on the stops the center of the spindle is only 13” from the bottom of the inner fender. Meaning, a ~26” tall tire would be bottomed out on the inner fender.
It would be a ton of work for very little gain in travel, you’d just hit the next thing a 1/4” later.