Charles,
You might want to try your Vista with slagles stepups for the miyajima.
I ran that combo for a while and it was quite good, of course a better fono pre would help even more.
Do what the big boys do in high end analogue and run a MM phono pre and use stepups. Built in gain for a MC is a selling point for sure, but not really the best way to do it. The passive gain created by the transformer is by far the best sounding IMO, the inductor in the cartridge likes to see another inductor boost its signal, whenever caps and resistors are removed from the signal ,,it only gets better IMO.
If slagles stepups are too dear, than try cheaper ones, there are plenty out there......but IMO slagles are some of the best