Please don’t give up on your efforts. As others have pointed out, the brushless Makita router is likely not as powerful as the 0701. But it may be adequate and could offer numerous other advantages.
If you tell me what the resistances of the routers’ motor windings are, I should be able to provide an estimate of their relative power capabilities. (Which you should also be able to do with your cutting tests if they’re router power limited.) That would also enable me to provide advice on powering the brushless routers.