Baggage Door Skin - How to rivet.

For those who've riveted the outer skin to the baggage door frame, how did you do it? There isn't enough room to get the squeezer in there, and I can't figure out how to back rivet it without really bending up the inside flange. So before I overlook something obvious, I'd appreciate some hints.

Thanks,
Lynn

Rivet gun and a skinny bucking bar or a rivet gun and a "footed" bucking bar worked for me...

4" Tungsten Bucking Bar

Hi Lynn,

I have just finished helping a friend his baggage door and the 4" BB
was able to get to all rivets.

Thanks for the replies, for some reason shooting the rivets didn't cross my mind. Lynn