3d version of a simple metal part

hi all. I have a hand made piece that I'd like to get converted in to a 3d file for the purposes of getting made up. I was hoping to get a plastic or aluminium version of this hand done metal piece created where the top and curve and the base of the object are cleaned up in the process of converting it to a 3d file. I can post the part for reference or provide measurements as the curve fits perfectly but isn't based on a specific radius it is moulded to fit an old 1960s car. I was just hoping to get recreated in cad form we could clean up the curve slightly as it was originally hand done and hence has hand done imperfections and weld marks down the curved side as you can see.. id love the final pieces to have a clean edge and the top form a little cleaner. Ideally I'd love to be able to send the 3d file away to get it made up in aluminium or sheet steel. The template I made that is pictured in the photo is constructed from 1mm sheet steel. I'd ideally love the welds removed from around the curve at the bottom and just show it smooth.