We wound up scaling down our record producer solution for a more MVP approach for now, it opens them directly to the [alm_transfer_order] table.. we also added the variable editor as well  by requesting servicenow add a 'variable' column to that table so it can be seen on the backend form.

For now its MVP and spits out a summary of what's requested to the external vendor. The issue we have is that the vendor decides what serialized assets get transferred so you cant pick that up front... what we do is use a MRVS to select product model and qty and query the stockrooms to ensure the qty exists for validation prior to submittal and then it emails a summary to the external vendor contacts.

We do in the future want to have it create TOLs possible and have the vendor tell us the assets it actually moved and backfill the TOLs via a file transfer integration we have set up to sync assets for other lifecycle events via transform maps.

Can you please share some more details about your TOL solution and how it is working for you? Id be very interested to see if you have similar use cases as us.