600 watt hardcore ballasts/grow lights

I`ve got 2 lightly used sun systems 600 watt hps ballasts @ $50 each. $90 for the pair. Only ran one set of auto flowers between the 2 setups. Bulbs are lumatek professional and are $20 each for both or $30. Also have a 600 watt hps to MH conversion bulb for $30 text only