Step 3Extracting the bulb!
Next youll mostly likely have to remove the base that holds the actual glass bulb. This is the most difficult part of the mod. Youll want to wear gloves and use lots of patience when extracting the bulb from the base. I broke the prongs out of the bottom of the base then used side cutters to free the bulb from the metal holder toward the top of the base. After it was loose I worked the bulbs thick leads back and forth until I was able to cut them at a reasonable distance. You dont want to break off the power leads to the bulb or you will ruin the bulb.
£36.49 + postage from here is the cheapest I found.
http://cgi.ebay.co.uk/HD-LED-Projector-EXTRA-REPLACEMENT-SPARE-BULB-LAMP-/150591650632?pt=LH_DefaultDomain_0&hash=item230ff63b48
Copy and past that link and you can see for yourself.
I was going to do the same thing, ie buy a used projector with no bulb and make my own, But I decided to buy one of the cheap Abis projectors off ebay.
I was very supprised how good these cheap projectors are.
But be very carefull. I purchased the Abis HDpro for £200 and it has two hdmi inputs, component, composite input, vga and tv tuner input. It handles 720p fine and 1080p with compression 4.3 to 16.9 aspec ratio in all formats. Some other makes don't have all these features. It saved me a lot of hassle trying to make one work the way you have.
But if you are trying leds I would look at the cheap led projector bulbs off ebay.
Lamp Life: UP TO 50,000 hours Total Watts: 96watts (32 High powered LEDs fused onto a cell Plate) and upto 2,500 lumens.