Here ya go

The ladder is 3' long ( I have some 3.5' ones also ) and its 6" wide at the base of the legs (where they contact the tree) I tie them on with camo rope.... one on each end - really easy to use........ and very cheap !!

To make -

Cut two pieces 3" long and weld 1/2" aprt to a scrap piece of metal (to make a bending jig)
Now simply cut some of the 3' long pieces.....2 for each ladder
Now that you have some shorter pieces, stick the end in your little jig....with the end out a few inches and start bending it into the ' U' shape - its 6" tall and 6" wide.....

Now simply set the long pices up on a 2X4 (layed flat so the long pieces are 1.5 - 2" off floor / slab)
Put the steps ) U pieces) in place (the long pieces go on the INSIDE of steps-see photo) and weld. I put one on each end, and tack weld in place, then the center one... then weld them up very well......

Then let them cool off... and paint them up........