You aren’t the first person to step on the brake pedal after removing the drum … ask me how I know 
Years ago an auto-shop instructor showed me how to replace the shoes on my truck. He told me to remove the drum then he’d show me. He removed all the parts from the backing plate then put it all back on in less than 5 minutes. His “trick” was to assemble both shoes w/the springs while everything was still laying on the garage floor. Then he positioned everything onto the backing plate as a single unit. In other words the last thing he did was attach the spring clips to hold the shoes to the backing plate. This is a bit of a magic act, a juggling act, something I wasn’t able to do with any consistency. When I tried it most of the parts would drop off and land on the floor before I could get the spring clips on. But I think if you want to be a drum brake speed demon mechanic that’s the way it’s done.
I found the link below to be an interesting thread about drum brakes. Won’t be of much value for the OP’s practical problem, but maybe still interesting.
@COROLLAGUY1 … just curioius, what’s that “Sealey” cylindrical shaped tool used for?