Ask him the price to buy it

The blacksmith laughs. He wipes sweat from his forehead and says.

"The gauntlet? It's not for sale. Not for any coin you have. This is something that only rich, noble people can afford. This is an experimental model for the noble lord, he's gathering some kind of gems, but it's not important now."

Then he leans closer, grabs your waist, and continues.

"But… I’ve got a private job that needs doing. You help me with it, and maybe… We’ll talk about the gauntlet again in a few months."

He doesn’t specify what the job details are, but you notice his eyes looking at your breasts and her hands touching your body at every opportunity...
He's so obvious...

You can swallow your pride and accept, or you can refuse the job and find another way.