A few years ago I acquired a '26 Model T Ford basket case with split rims that were out of round and so badly distorted that I couldn't get them to fit on the wheels. My solution was to make a quarter section pattern from 1/4" plywood by tracing the OD of the fellow (which was round). This gave me a starting point. I then took 2 blocks of hardwood and cut one edge of one block concave to match the outside radius of the rim. One edge of the second block was cut convex to match the inside radius of the rim. I sat in a chair, placed a pad over my thighs and positioned the first rim on my lap (on the pad). By placing the appropriate hardwood block against the rim and striking it with a hammer, I was able to bend the rim, increasing or decreasing the radius a little at a time until it matched the radius gauge or pattern at all points around the rim. Where the rim was dished, I made the hammer blows on one edge or the other depending on which edge needed to be increased or decreased in radius, until the rim would lay flat. By working the rims in this way I was able to get them to fit the fellows perfectly and run true within 1/16" TIR. The tires all run true within 1/16", also. My thighs were a little sore, but with some imagination you could come up with any number of suitable backup surfaces for hammering against. The 19" DB rims are fairly light, so I would expect to be able to straighten them in the same way. If you would like more detail and some pictures, contact me at wattslm@juno.com. Good luck! Larry