Cut back the existing floor from the point where you CAN get a circ saw in there. Then there will be more boards in the final "trim-around" and it will look intentional. Lots of old houses have parallel floor boards only in the middle of a room. The perimeter goes both ways with the corners of the "perimeter" pcs. mitered.
Or, don't miter them and color the new maple boards black, or anything that makes them look suffuciently different from the clear maple.
At any rate, the final result (of anything)
shouldn't look like it was a solution to a problem. Rather, it should look intentional and part of the planned design outcome.
Nailing off retrofit flooring pcs. under cab toe-kicks is never easy, but you can do it!
