“I am afraid that I done, not because I have achieved what I want, but because I am now on a fixed income which does not allow me the luxury to upgrade the way I used to when I was gainfully employed.”
What is the situation with your room? Do you have a dedicated listening room? Are you free to modify it with room treatments? If you can do a little handyman level work there’s a lot that can be done to upgrade through room acoustics on a modest budget. I’d be happy to steer you in a good direction