Slickcraft "1968" Twin Inboards Help

[Tinkertoy2.0]

I just bought a 1968 Slickcraft 23 Ft, with twin PMC engines with from what I can see Velvet transmissions and Twin PMC outdrives. I'm more of an outboard person but got this boat and trailer on a good deal. I cannot find any information or pictures on this model. I bought the set for the trailer but would be interested in restoring it if I could find out more info on it. Any info or help or even where to look would be appreciated.