[Johnnybukkel]

You can replace your parts from your old acquisitions with your new parts. However, ALL manufactured parts must count in your 45 pounds of spares. Other things, such as screws or motors or anything that isn't modified at all, (with some exceptions) counts in a 500 pound spare limit. So if you had two arms with rollers in between that you wanted to bring in that was 15 pounds, and the motor you connected to it was 2 pounds, 13 pounds of your 45 pound limit on spares would be taken off.