those lamps are going to draw 100 amps at 12 volts, if i did my math right, and i'd be surprised if your alternator puts out more than 70 amps.
you wouldn't be able to run them very long.
an axillary battery would extend run time, but an alternator upgrade would be the best bet.
125 amp?
probably bigger.
i had 4- 100 watt lamps and was able to run them + fan and wipers, etc. for a little more then an hour before i would have to turn them off to recharge.
just some thoughts.
richard