Some strong arguments against buying something so old and perhaps unreliable. I also appreciate owners of Luxman's who have suggested the are a solid performer and reliable. I have considered many of the suggested options including some old kit type tube amps from the 50's (dynaco) but I have a limited budget for this project and will likely continue with my research and my journey down the tube rabbit hole. Just a note that the tube amp will be used as a option to my existing system which I am very happy with, as I noted in the intro includes a tube preamp (AR LS 25 Mark II), 2 Class A mono amps 80 watts per amp. (Schiit Aegir's), into the Wilson Benesch Speakers which I believe are rated around 86 db sensitivity. I have talked with a number of tube amp folks who love there low watt per channel oriental tube amps, so given my preferred listening levels of low to medium volume I am not too concerned about a high watt tube amp.
Thanks to all for your comments and input.