I just watched an old video from BHB reptiles, he had stacks of plastic tubs like that stacked several high with lids on a wire shelving unit for ball python hatchlings, seems like maybe he was in a pinch for space and added some quick tubs. I would think you could heat your room to low to mid 80s and do away with the heat tape for a short term space problem. I'd keep the stock lids and drill a few holes in the sides of the tubs for air.