Hi,
I take it one is the old style 20 pin for the disk drive][ and the other controller card is for the newer style DB 19 or is it 15 newer Apple II drives.
The newer will weight more because of the cable and screws, in the box they als comes with a little apple wrench. I can weight them up and post it for you late Friday. As long as my scale is still working. It is not much that is for sure.
But how you shipp it can change the price.
Take Care