I read in the book that widely spaced motors in pods is a hallmark of extremely POOR rocket design. Then I built the Arado 234 Blitz and it flew fine on 2 D12s in the pods. Not so good at book learning.
On this one you could use a three motor configuration and be just fine. Say 2 C6 0 plugged in the pods and a tractor C6 7(or longer burn D-E12) rear eject in a stubby fuselage up front. Three motors would spread out the sin and provide a nice centerline thrust to bring balance to the force. Reduce or eliminate the need for NO GOOD, STINKING, PERFORMANCE ROBBING NOSE WEIGHT. Yes, daddy would be happy to see such an unnatural little beasty fly; the Jedi, maybe not. My mindsim would require a nice long rod, Q2G2s and perfect conditions. Always thinking of flying a real B29 with a minimum of 5 motors. Love me some pods! Love me some questionably plugged motors ! It would need a good quad turret up front.