Here is a photo from a magazine article on the S&M 70 P/S Barracuda. It shows the cool can - not sure of the manufacturer but it looks like it has a Milodon sticker on it. As for the coil - this is the Chrysler Prestolite coil that was also used on the 68 Hemi Darts & Barracudas and most P/S Mopars until the crank trigger came out. Note on the Mech tachs - there are a couple of different positions that the cable exits the back of the gauge - straight out, to the bottom or side. Not a big deal but something to be aware of - I belive that there are 90º adaptors available. In order to get the correct look (stance) the trend in those days was for a tall front tire - I would look for the tallest tires that you can find in 15". Most street tires (rear) are shorter than the slicks used on these cars and the look is not right. The Dana 60's that are found in trucks must have the housing ends cut off and replaced and new axles purchased - the truck Danas also do not have a provision to mount the pinnion snubber as well - check other threads in the race section on IDing the Dana 60 as there are a couple of different Danas used in trucks - there are also a couple of different axle tube diameters - look for the same as the car Dana - 3".
Mark J