Ed, 
  There is a fella who you may wish to meet out there in Michigan. He has an interest in old tractors and works for the railroad out there. His name is Myron Wernette. Myron's father is a neighbor to Chris Losey... I had the priviledge to meet Myron, his brother Allen, and his father Victor a couple of years back... a good memory I shall always remember. (nuts... I thought I could come up with his E-mail address) Myron and his brother restored several Olivers. I belive he lives northwest of Chris Losey by an hour or so (perhaps Chris can fill in some of these blanks.)  
  As regards the damaged wheel, we have a lot of small woodworking shops(cabinet shops) around here, if you have the same, they may be able to make a new spoke at a reasonable price, but I doubt they would rebuild the entire wheel. I would check with the Amish first..... if anyone knows those wheels, the do and they will do it right!
                                    Cal