hello from Monson, Massachusetts. I will try to explain what I have made to display my adjustable wrenches at a few old engine & tractor shows.
I take 4'x8' peg board and cut it length ways to make 2'x8' panels. then make a frame on the rear with 1"x3" wood. on the sides, I use 10' long pieces that gives me 2' off the groung for easy viewing. these I mount with
1/4" T-nuts on the rear of the wood strips. drill holes thru the strips using the peg board panel holes as a guide. by useing t-nuts, you can change tthe legs anytime if you break one. Also, I put another 1"x3" leg
in the rear center mounted with a hinge to let the displat stand freely. I use eye hooks and a chain between
the rear center leg and the bottom of the display board to keep it steady.
where the rear leg meets the botton rear board, I drill a hole and put a bolt thru it with a wing nut to keep it out of the way for storage.
I have found some white plastic peg board that I will try when spring arrives.
I fasten my tools with ty-wraps, you can buy bags of them cheaply, that way, if you want to remove a tool, just
cut the plastic ty-wrap.
you can also use peg hooks to hang items, or use shelf peg hooks if you want shelfs.
I hope that I have not bored you with my comments, and hope to hear how you have decided to make your display.
as I get older, I have been thinking about makeing my next ones 2'x4' with 6' legs as some of these tools get heavier with age.