>>I'm petrified that if I try to get the mounting hole locations correct on my own, that I'll screw up and end up with useless panels.
If you want the oval holes that people often use, you can use the software itslelf to put these in.
I forgett exactly where it is, but if you find "insert system holes" and then choose "partial front panel" they will get put in for you.
If there are any additional holes, these can be deleted in the normal way.
Otherwise ill have to look up the locations for round holes for you.
Julian