You can call ARC and see if they still have transports for the CD1. I know that they no longer have transports for the CD2. But I think you are taking a risk even if they still have a few transports. I would suggest a CD3 or later. The CD3 and later models are all top loading and can be repaired. They all use a similar transport.
Buying top brands's older CD players: Pros& Con
I recently saw an ad in a magazine audio mark for a Audio Research used/good condition CD-1 CD player; i might be able to negotiate a lower price It was reviewed well in Stereophile in 2005, but in the high end business that is already ancient history. However, has anybody ever heard or owned this machine?? Is the technology of the model and its sound possibly been bypassed by the newer CD players of the last 3 years. The CD-1 first came to market in 1995 which makes me leery of buying; I currently have a Rega Apollo, but want to make a noticeable upgrade in sound, e.g, smoother highs, better bass and imagng Thank you