I could use those forged select steel double box end wrenches for my set, but I'm not inclined to pay $5 each for them plus shipping. I typically buy them from .50-2.00 each at flea markets and such.
You may want to research your prices a little more, you will have those stilsons and monkeys for quite some time at those rates.
Let me know by PM if you will come down any on the select steel wrenches.