Well Jeff's bronco graveyard has the bearing and gasket kit for the dana 24 I'm not sure if they have the t98 rebuild kit but perhaps. Blackbirds customs makes a disc brake kit for the early dana 44 or you could switch to a newer axle like I'm doing to get disc brakes. John mummert makes everything y block they'll have the 4bbl intake you'll want and they have rebuild kits. Good luck with the build post your progress
Kyle