That sounds like a pretty stodgy and complicated way to solve a fairly easy task. I don't think I would ever encounter such a technical tangle. I am about to do somewhat the same thing here if I am reading this correctly. I have an outboard NVMe USB enclosure, going to mirror the existing 512 GB NVMe drive to a brand new shiny 2TB Intel NVMe 670 SSD (80 bucks shipped @ Newegg!). My biggest dilemma is whether Acronis or Macrium is better suited. Installing the program is the most complex part of the task. Have fun fiddling around with all that technology. I would suggest trying the manufacturer and seeing how they want you to use their product, frankly never heard of it and haven't used that sort of thing since laplink.
UPDATE: OK who says you can't teach an old dog new tricks? I just finished the clone with EaseUS Partition Master. I always use the program to take a look at disks before I do any operations with it. EaseUs can do things such as format protected disks or with other troublesome formats. So I fire it up with the new drive inside the outboard enclosure and guess what pops up? "I see you have a blank hard disk, would you like to clone the existing drive?" Heck yes I would so I click the go ahead button. Worked like a champ folks, currently posting from that system with the new 2TB SSD installed. No difference other than I gained 1.5 TB of onboard storage. Who knew? For the record a Win 11 Pro 64 bit system, a native 512GB SSD NVMe SSD. Give it a try, Doggie endorsed.