so im debating on building a bumper or buying one. i just bought a smitty bilt xrc8 winch

cant wait to get it in the mail.
so anyway the mounting required is 10" x 4.5" (4 bolts, 3/8")
i was thinking on a steel rectangle tube 1/8 in thick but not really sure if thats thick enough? i dont want anything fancy just a straight tube bumper with a winch maybe later put some bent tubing on it but i want it to be strong to handle a winch.
so i havent gone to my local metal yard yet but been checking out prices online for metal and its alittle more than i though it would be. if the local isnt cheaper it might be worth it just to buy a used bumper or buy new thinking ZOR or rocky road