where to buy injector T's ?

Im still repairing many things on my 92 F350 I just bought. Right now it is leaking diesel very bad. Diesel is running down the block and covering the lift pump and I see diesel puddled on the intake manifold and a few of the injectors are wet arounf the T's. My question is where is the best place to buy the replacement parts.I seen a kit on e-bay for $69 plus shipping, has anyone used it? It also smokes white even at idle after it is hot, could that be from air getting into the fuel from the leaking T's? There is hardly no blow by.