(First post so hopefully I got everything right)
All characters with superpowers (in this case Hank and Richards) are depowered for this fight, Tony does not have extremis. Each character gets an hour in a home depot, with unlimited funds, to gather materials for their battle. Afterwards they each get 8 hours to create their equipment for the battle, with access to a complete workshop (with a welder, press, ect.). General knowledge of the other combatants prior to assembling materials, and they cannot interfere with each other before the battle. They only have access to equipment made from their materials (No batsuit, utility belt, ironman suit, ect.) . Battle takes place on the deck of a cargo carrier ship (pictured). These are the comic book versions of themselves.
Who wins? and what did they create that outdid the others?