Thanks to everyone for the kind words!! As for the answers to the questions: The wheels are slightly overscale @ 24" and were purchased from Hansen's Wagons in South Dakota. They are really well made. The firing mech. uses a musket cap that is placed on the nipple and the spring loaded assembly locks on with a 1/4 turn machined slot. If you enlarge the picture you can see the slot machined in the body. The cannon is already heavy enough that it doesn't move when the pin is pulled. As for learning the metal working skills, that came from 35 years in the race car/motorcycle fabrication business and the wood working skills I'm still aquiring since turning the business over to my son. As for my picture posting skill that sucks but I'll keep at it. I have alot more detail shots and will continue to take pictures as I add components.
The biggest help was someone replying to my request for drawings informing me about Antique Ordnance. I bought everything on the Mountain Howitzers which will save me alot of time fabricating the hardware. All the basic dimensions were obtained up till now by scaling off of pictures which is very time consuming.
Well it's time to stop talking and start making parts.
Steve R