If you are 130 miles west of Yosemite I’m guessing you aren’t too far from Fresno. In this day and age it’s easy to forget that there are actually brick and mortar stores out there, but have you gone to Horn Photo? I live in the San Diego area and I found that in a couple of seconds. Better than asking on CN to a bunch of people that really may have no idea what they are talking about.
Horn is going to work for me but thank you for the suggestion.
I am about 139 miles (156 road miles) from Yosemite NP and about 150 miles (175 road) miles from Fresno, so fly or drive it would be a long way to go for advice.
Camera stores are fading, we have only one left in the area. Nice place with lots of expensive gear and collectible cameras and they quickly and very authoritatively recommend the German made kit from Lächerlich TeuerTM.. It comes in different sizes for different sensors and brands. A camera tech gave me a demonstration and wow clean room results. I pulled out the platinum card and then they said that the size I needed was on order. When it comes in I will post a CN report.
I had to think about your comment about " a bunch of people that really may have no idea what they are talking about." because it does speak to a truth or a part of a truth anyway. We both post here and I have some doubts about the reliability of my posts.