I believe you do need to be wary of the aft C of G limit on a tail dragger C150/2.
The removal of the nose wheel and the extra weight of the tailwheel and the mounting hardware moves the C of g aft and can, in some situations, take you behind the aft limit where you would not be with the nose wheel variant.
Check the C of G especially if you ever plan to spin it or do anything that could result in a spin.