D&R bought a lot of the OEM O'day parts when O'day closed up. I think they bought some Pearson stuff too. Both were built in New England. D&R is the only authorized retailer of Edson close outs and seconds from what I understand. I couldn't find anything at all when I looked for Orion parts, but maybe D&R stashed some or can help you out if you need to convert to Edson on the cheap. I talked to them when I was thinking about buying a Newport 30 and adding a wheel. Due to a bad back I just can't sit in the orientation required to run a tiller anymore. They had the lowest prices, but to be frank, only by a few hundred as I recall. It just isn't worth it to add wheel steering to an old boat unless you do it all yourself. Hopefully, because you have an existing unit, you can adapt most of the Edson stuff and perhaps just swap the pedestal. Is your system cable with a quadrant?