Nick
I have been able to do almost all of my riviting with a hand squeezer. I have used a vice to hold the die and a hammer in a few places. Actually works quite well. Again, if you run into the 2% where you need a rivit gun you can probably set it all up and get a little help from a friend with a rivit gun.
I have, and use, a 3" yoke. You could use a 4 inch. It would give a little more depth but it is also more unwieldly for the rest of the time. Maybe get a 2" and a 4". Lots of options.
Part #8014 from Avery is a die set that has #3 and #4 dimplers and squeezers. Just about all you will need.
The cage is a tool that holds the countersink cutter. It is also called a Micro-stop. It allows you to set the depth of the countersink so you don't cut too deep. They run about 30 bucks.
Here is a link to Avery's plate nut jig. No picture.
http://www.averytools.com/pc-892-28-pla ... -jigs.aspx
Here is a link to a picture
http://www.matcotools.com/Catalog/toolc ... ct=&page=3
They are really handy and you probably only need one, for the #6 screws. Try to use the same type and size screw as much as possible. It really simplifies maintenance later.
I have used a Dremel for a lot of applications. It is really handy. A Dremel with a cut off wheel makes a nice slot. A little clean up with a file and you are there. Don't forget to drill the corners or otherwise round them so you don't have a square corner which will create a stress riser and thus be a place for a crack to start.
Hope this helps
Bill
I feel a little funny making all these suggestions. There are folks on this site that have forgotten more than I will ever know. Feel free to jump in here folks.