I've got materials for a set of Metal DDR Dance mats (2 total) I want to give away. I recently acquired some pre-made mats so I no longer need to finish these. If someone would like to take on the project, let me know and the parts are yours free of charge. I can drop the parts at AHA for you or you can come pick them up.
They will probably take about 10 hours of work to finish up nicely. 4-5 if you rush it or have help.
About $250 of material would be included. Metal (pre-cut!), screws, corner brackets, wood, weatherstripping, printed instructions and possibly 2 sacrificial PS1 controllers (need to find them) would be included. A bit of additional material would be needed to form the bases but I'm fairly certain I've seen stuff the right size at AHA.