That sounds like a fun project! Powerhouse Gyms are known for their hardcore and no-nonsense approach to fitness, so there's a lot you can do with the decor and equipment to really capture that vibe. You could set up different workout stations with heavy weights, benches, squat racks, and maybe even some tire-flipping areas for a more intense workout setting. For decoration, you could add motivational posters, mirrors, and maybe even some graffiti art to give it that urban gym feel. Adding in some cardio equipment like treadmills, bikes, or rowing machines could also help to round out the space. Make sure to also include a good sound system to really set the mood and get your RP participants pumped up and ready to train hard!