Great looking car. I would buy a complete hardware kit along with all new bushings. The shackles more than likely will be fine to reuse. The only reason I would think to replace them is because of age (rust). I'm not sure how the front leafs mount as I have not replaced mine yet. If there anything like my 77 you will want to make sure to buy the j clips that the bolts mount the front bracket to the frame/body. This will also be a good time to replace the u-bolts that hold the axle to the leafs. I drilled mine out and put the next larger size in due to the added horsepower. Good Luck and watch your knuckles.