[Stocker]

You're keeping the stock sealed-beam headlamps? Not sure of the wattage but I'm pretty sure they're less than H4 conversions, which are 55W (low) / 60W (high) for standard bulbs.

You could run dual-filament (high / low) in your high-beam buckets, just need to run a third wire and of course get 3-prong connectors. The only issue would be other drivers (including cops) seeing 4 lamps on and thinking you're on high beam.