Cometpinball.com is Art/Oldpinguy on here and he has great prices on bulk orders. If you are wanting to make your own kits, I recently redid 2 of my machines for about $60 total with his bulbs. I have used PinballLife before and their cheap bulbs are good but not too powerful, so they are best for inserts and not GI. My Spiderman came with a Cointaker kit already in it and looks good, but I dont know about paying the high price when I could piece it together myself much cheaper. It just depends on what you are looking for as far as having bulk stock to make your own design or a pre-made kit so you dont have to worry about figuring it out from scratch. Good luck!