Well, I told you how to fix the problem, put the baby on straw (something soft) you can even give it a folded wash cloth. I may not have been raising peachicks for years, but it has been over 2 years. I lost my first few to causes I did not know, but I eventually figured things out by trying different things.
I raise my peachicks on medicated chick feed for the first 2 to 3 weeks. From there their feed is mixed 1/2 chick, 1/2 gamebird for about a month and then they go to straight gamebird mixed with scratch and a high protein catfood (Ocean whitefish, which they love). He should have been off the wire within days of hatching.
If he has a bubble on the bottom of the foot, he may have bumble foot.
Trust me, it may not hurt to try an amatures way, but it is up to you since you already stated "Deerman, I trust you and Steve." I am sorry you do not trust what I am saying, but I was a beginner at one time also. In the beginning I even had a couple people tell me you cannot hatch peachicks in an incubator, but I do it all the time now, after many failed attempts and I started to think it was true.
Regardless, good luck and hope your help comes in time.