bt,
Easiest - htgsupply.com - They have remote-ballast 150w HPS for ~$80. This price used to include shipping, might still. You'd have to assemble the cool tube but everything else is pretty much taken care of. Tell HTG you don't want a reflector, see if they'll reduce the price. If you need a reflector, a bat wing will incorporate with the tube easier than a hood.
Cheapest - or close to it for a new lamp. e-conolight.com has 150w HPS security lights for $52 shipped. You'd have to take it apart and extend two lamp wires the distance from remote ballast to lamp. Add a ground wire from metal x-former box to metal part of tube (or metal reflector) for safety.
cool tube - you'll have to get a globe and fashion some way of fastening the bulb and socket inside the tube. The grow room and designs thread has DIYs for fashioning a cool tube and also remote ballast.
Easiest - htgsupply.com - They have remote-ballast 150w HPS for ~$80. This price used to include shipping, might still. You'd have to assemble the cool tube but everything else is pretty much taken care of. Tell HTG you don't want a reflector, see if they'll reduce the price. If you need a reflector, a bat wing will incorporate with the tube easier than a hood.
Cheapest - or close to it for a new lamp. e-conolight.com has 150w HPS security lights for $52 shipped. You'd have to take it apart and extend two lamp wires the distance from remote ballast to lamp. Add a ground wire from metal x-former box to metal part of tube (or metal reflector) for safety.
cool tube - you'll have to get a globe and fashion some way of fastening the bulb and socket inside the tube. The grow room and designs thread has DIYs for fashioning a cool tube and also remote ballast.