I think you are referring to installing 3/16" body rivets, correct? I think you are going to have problems with doing some riveting where there is no easy way to buck rivets. I totally removed all the panels, quarterpanels, cowl, panels above and below the trunk and the whole roof. All I had left was a skeleton of the car. I have installed all the body rivets on my 28 special coupe and some were really hard to set. I made special bucking tools to do the riveting. Some rivets were easy to set and some up inside the subrails were hard to set. I have some pictures of the tools I made if you would like to see them, send me a PM. I have riveting tools, but I need them for may next cars. I think your best option is just buy the waffle tool and any other tools from a parts supplier. I made all my own bucking tools and I don't have a machine shop, just some air and power tools. The hand made tools worked fine.
Rusty Nelson
Lakeville, MN