Ron, it sounds like you have slid down the slippery slope to rock bottom!! I only have one conversion I would like to do; an MTH ProtoSound " PS1?" to ERR. The only other is another ProtoSound PCC car that sits on the shelf. On the other hand, if I got hooked, who knows. I could start buying old stuff and upgrading them. The slippery slope.
Yes, at over 65, the HD microscope, head visors, I have both, don't help shaky hands much.