it would help a lot if you were more specific on which exact robots you were referring to. If the bots in question have parts that are in that mod but not in the one you are moving them do, the game will crash. You will have to move over the components to keep it from crashing. That said, generally consolidating parts from different mods will create an unbalanced mess and some robots will be way more powerful than others. But this may not matter to you.
The AI question also depends which specific bots you are using.