link is dead for stern roms. But its not hard to find and create 732 images
Label your ROMs consistently. U1.716, U2.716 etc...
Open NotePad and create two batch files. File -> save as, change file type to *.*, save with a .BAT file extension instead of .TXT.
For MPU200 enter into notepad...
copy /b u1.716+u2.716 u2.732
copy /b u5.716+u6.716 u6.732
copy /b u2.716+u2.716 u2.732
copy /b u6.732+u6.716 u6.732
Then when you want to create a 732 ROM label your ROM U1.716 and etc to match the batch file. Copy the batch file into the directory with the ROMs. double click to run the batch file. Then you have combined ROMs.
30 minutes or so and you could download and do all the stern games or if you just do them as needed should only take seconds per game once you have the batch file created.