If you're on a budget I would get some 2" pvc pipe and elbows etc and just spray the concrete with vht. The vht is somewhere around $35 a gallon and you'll need a weed sprayer and some alcohol to thin it. Since you're inside you don't have to worry about rain washing it away. One coat should last for quite a long time. I went and raced outside on a vht prepped concrete slab and the traction was crazy.