REK O KUT IDLER WHEELS

I am rebuilding several Old School Rek O Kut T-43  turntables and I will need to get the 78 idler wheels....These turntables can use either 45 or 78 idlers on the same spindle.......I really need new idlers , not rebuilt .....If you have first hand knowledge of this I would like your idea's on this ??  In fact if you have knowledge of any of these old Rek O Kut turntables, like the T-12, T-16, T-43, and even the turntables that were used for cutting records...........THANKS