For what you do that's a solid lineup. I'm in the same boat, shoot tons of photos and video, and I'm actually considering shrinking my kit a bit with all the recent aps-c lens announcements and the FX30 - combined with either my a7IV as my photo workhorse or the a7rV. The 26mp crop mode for stills on the rV makes for a lot of versatility.
Just an FYI, the Tamron RXD lenses are not quite as good as the VXD lenses from an AF standpoint. They still perform well, I ran the original 28-75 a lot on the a7sIII, never had any major issues. The newer version is better. The linear motors are smoother. The 35-150 is awesome. If I could find one, it would live on one of my bodies.
Mixing aps-c and FF complicates things a bit lens wise for me, but with small/fast zooms like the Tamron's and the new Sigma 18-50/2.8, it really has me itching to downsize a bit and move from the a7sIII to the FX30. The complete lack of photo features gives me pause, as I actually do shoot a fair number of photos with the a7sIII. I get its cost cutting to hit that price point, but not having a shutter and single shot only with the FX30 is a numb nut decision to gimp the camera.
Cheers
Chris