I'm getting ready to mount tires on freshly painted rims for my Model 79 Overland wood wheels made by the Standard Wheel Company. These wheels have the rim, inside continuous ring and the outside split ring. Hoping to get advise as to completing this task without destroying the brand new finishes. The inside ring is easy, but I see a challenge for the outside split rim. Looking online, there only seems to be tools or spreaders for the Model T type spit rims which wouldn't seem to help with the style ring the Overland used. After investing more than 100 hours in these wheels in prep and paint any advise, pictures or videos would be greatly appreciated. Thanks in advance