Why buy used,when you can buy brand new as cheap as this.Try looking at http://www.aquaticlight.com./ They have the cheapest MH retro kits I have seen.These are the ones that I have on my tank(175 watt)and love them.I got the bulb upgrade,and the reflectors....The company is very easy to deal with,and my shipment arrived within a couple days...
These do seem like good prices compared to many sites i have seen. Did you all buy the reflector? If so did you build your own hood around it? Is there enough room in the reflector to place flo. bulbs?
Dustin