I was looking for legs for my printer but all used some hardware. My design is screwless and just pressure fits using the rail in the aluminium profile. It's simplistic, without curvers but very reliable. It might fit a bit loose depending on your tolerances but if it isn't in an extreme slippery surface there should be no problem. They will lift the printer enough to put the default control box under.
Print as suggested default orientation for no supports. Print 2 normal and 2 mirrored.