No worries - I had not seen your update but appreciate your effort.
OK, given that you have a range of EF lenses rather than EF-S glass, and with the following summery as I see it:
A FF sensor is best for portraits, low light work, wide-angle work
An APS-C sensor offers a FoV boost for wildlife and some sports.
You are shooting images with a range from digital, through year books to quite large prints.
That would normally suggest two cameras a FF and an APS-C unit, but I am going to not head in that direction. To be honest I am not convinced that the current line-up of APS-C sensor cameras is right at the present and have avoided getting one, even though I shoot with very long lenses myself. So, I am going to suggest that you consider the Canon EOS R5, which is currently the top general purpose camera from Canon. It has a 45MP FF sensor, but offers the ability to shoot in APS-H (1.3 x) and APS-C (1.6x) crop modes and you can switch between those modes quite quickly. If you were to shoot in APS-C crop mode, it would render images of about 17MP, which is pretty close to what you were getting from the 7DII, but requires only one camera.
I have shot in both all those modes and had no issues with quality, and I would expect much the same for you, given your L lenses (I had the 28-300L and was rather sad I sold it). It should utilize your current EF glass via the Canon EF-RF adapters.
The R5 has a lighter body, uses the same batteries as your 7DII, can use a battery grip, although for weight reasons I suspect you may pass on that, is weather sealed and has a great focusing system with eye and face detection. It also has excellent video capability - but that is not my area of expertise, so I shall leave that to others.
As I understand it, this body is on sale right now, so it should not break the bank. The model is listed on Canon's refurb site at a great price: Shop Canon Refurbished EOS R5 Body | Canon U.S.A., Inc. These cameras may not even have been used, but if so, will be as good as new (some argue better) and come with a warranty.
cheers, TREVOR
"The Amount of Misery expands to fill the space available"
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
