Emblem Install Question

I'm getting ready to install the new F100 Emblems I bought and I have a quick question.

Is it better/easier to remove the barrel clips and install them first or leave them on the badge and insert everything at once?

Also, I made a huge mistake. I bought 2 fenders from a junkyard that where different trim levels from mine. I didn't even think of it at the time of paint but the holes for the different trim levels don't match! Now I'll have to try to hide the other holes with the new badges while drilling new holes in the correct location.

Put the barrel clips in the hole first. the pins on badge will spread them out a little to hold in the fender.

To the original poster:

Could you put 2 sided tape or a good adhesive on one emblem so that it could be placed to be like the other one mounted with the barrel nuts and hopefully cover the holes at the same time?

I don't trust the 2 sided tape to hold them. They are metal and not solid on the back. Just the outline of the letters would touch the tape. They were also $40 each! Not willing to risk losing them at that price.