I run a small production company in the South East UK and this year decided to launch a wedding business as a sideline. I'm late to this conversation, but just in case, a few points I hope you find useful:
1 - Having done a few now, I no longer shoot solely on DSLRs but always hire in an XF305, FS700 or similar with the DSLR for a few key shallow shots to add class. The rig you need to make a DSLR function is so unpractical with EVFs, Zoom etc hanging off it and you're moving fast so the best thing you can get is an all in one.
2 - From your previous post, it sound