PetSmart sells the glass lids for a reasonable price -- check there first if there's one local to you and double check the price on their website since they'll pricematch if you print the page out. For handles, you can glue something to the tops with aquarium sealant or just make the entire handle out of sealant globbed on however you like it. I don't know where you can get the hinges, but it wouldn't hurt to call some glass shops. I could use a hinge for one of my 46 bowfronts.