I'd think you could fab up a system like g.m. did for the poor carb'd t/a's
a thermo switched fan to blow on the starter area when stut off (heat soak )and a simple pipe to direct air to the starter while car is moving..
g.m. did something like this on the 85+ pontiac t/a to keep the fuel from boiling in the carb..
a small fan and a thermo switch thats only ativated when car is off. would cool the starter and header
when moving you'd have something like a brake duct on a race car.. to cool that area.. just the air movement alone will help..