To collect the table data without a HUD simply go into the HUD designer. Select your desired tables size. Remove all of the components from that HUD by clicking on one of the HUD components and then clicking the red X that appears next to it. Save it and name it something like HUDless. When at the Ignition tables right click on the DriveHUD icon at the top of the table and then left click where it says Load HUD. Select the one you just named from the list.
For your issues with the HUD component positioning:
When at an Ignition table you can drag individual HUD components by holding down right click on each HUD component of a player. You can move all of an individual player’s HUD components by holding down a left click on any of their HUD components. After getting the HUD aligned in your desired positions you’ll want to save the position by right clicking the DriveHUD icon at the top of the table and then left clicking on Save HUD Position. This will save the positioning for each new table you open in the future for that exact HUD layout for that exact table size.