Congrats Joe for the Vigilante!.
Regarding your question, you must know parallel plumbing the fuel tanks has a greater risk of feeding air to the turbine and instantly killing it. On the other hand, series plumbing them reduces this risk although you may have troubles with weight distribution as fuel is used.
If it is the case, best solution should parallel connect both main tanks to a smaller feeder or UAT one which will connect to the turbine pump.
I wish you the greatest success when you go for maidening your Vigilante!.
Best Regards.