Good advice on the salt , Was working out of state and didn't want my mom living in her older house so mover her into ours, Another family member was just trying to help but one winter with salt was all it took . we have a lot of shale in the gravel around so melt got under and froze and popped holes all over. Partially my fault because I hadn't sealed it very well. From what I see bigger is easier , watched a huge building that was many stories tall where a small crew ran power everything, They made it look easy. they had 4 ride on trowels , boy do they look fun, looked like little bumper cars up there.