The reason you’re trying to set it up this way is probably because you want to get it running on an Odroid H4 Ultra. That was already discussed earlier in this thread: Power efficient TrueNAS build with super cheap RDIMM (registered ECC memory)?
Along with several notes about using a 10 GbE NIC, there were also discussed possible boot configurations.
For me personally, the solution you’re aiming for involves too many layers / interfaces / adapters / protocol transitions, that’s my opinion. That level of complexity tends to introduce additional points of failure, and at least for my taste, that would be too complex. (I prefer the KISS approach myself)