Correct Alternator for '68 Dart GTS

Somehow, someway...I think I stumbled across the proper fit-up.
Here is how the brackets attach. Note: cast iron water pump (as per '68). Three bolts mount to engine. The triangular bracket can only go one way for the bolt holes to line up.
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Here is the set that Mancini sells. I think they must include pieces to accommodate more than one set up because I can't use some of what was in the package, and other pieces I ended up using differently than any of the photos I've seen in various posts.
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I had to located the short spacer here (aft of the alternator mounting ear and fore of the bracket) in order to get the alternator cleared from the engine block and head. With that spacer in place, there is no room for the longer spacer. In most online photos I've seen, the long spacer is used between the two mounting ears of the alternator. However, the longer spacer is too short to fill the space between the two ears, and I can't figure out what purpose it would serve just to wrap aroung the mounting bolt anyway.

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So, now I still need another short spacer to go between the aft mounting ear of the alternator and the cylinder head.

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I accomplished that with a couple of spacers from Ace Hardware. There was only one short spacer in the Mancini kit.

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With everything spaced as above, the tensioning bracket lines up perfectly.

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Here is the spacing between alternator and engine block.

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All that done, it looks like I'll get a pretty good lineup of the belt in the balancer and water pump grooves.

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Now, I'll just have to take some measurements and try to find a belt the correct width and length. Thanks, everyone, for your help.

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