I'll be needing to make some wheels in the 24" - 18" range. What size wood do y'all generally start with for the spokes? How about the hub assemblies? I really like the looks of the CW era ones. Is there somewhere on-line I can find dimensions for these for different carraiges? These won't be for replicas or any specific type. Just for the "cool" factor and structurally sound for a 1.25 " bore, 18" length gun (~40-50 lbs).